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**Title: Mirror Souls**

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Gender Dysphoria, Identity, Soul Swap, Twin, Swap in the style of Monet
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**Title: Crossed Hearts**

**Chapter 1: The Switch**

Dawn had barely brushed the sky, but the Fortune Cup had both Leo and Luna wired with excitement. Leo, eager for thrills, was scrambling into Luna’s uniform – makeup and all – ready to bluff his way into the tournament in her place. Luna lay curled on her twin bed, reluctant and tired, breasts starting to swell against her new training bra.

They’d been giggling about Leo’s ridiculous plan all night, voices hushed through the wall, every giggle punctuated by Leo’s insistence that “I’ll win as you and make you proud!” Luna snorted, “Just remember, Leo wears makeup!” Neither imagined the world itself was about to turn inside out.

It happened wide awake: first, a pulse of dizziness as their bodies threw off their clothes in an impossible swirl – white and pink jackets tangled in midair, a blur before reality snapped back in. Leo gasped, looking down. Not at his sturdy chest, but Luna’s forming curves, training bra squeezing tight – and the unmistakable ache of new breasts that would force him into Luna’s drawer to find something soft to hold them.

Luna, in Leo’s room, was breathing hard, chest flat and arms clumsy. Twin beds, twin faces – but now everything wrong.

The swap was absolute. No spell, no explanation: their souls had punched through flesh, Leo was Luna, Luna was Leo, and a silent, magic force had thrown them into each other’s rooms, forced their opposite outfits onto their new bodies. Leo twisted, looking for his own hands, but the mirror told the truth – slim wrists, shoulder-length green hair in twin ponytails, Luna’s worried eyes looking back, wide and soft.

A terrifying rule hung over them: whenever they tried to speak a word about their swap to anyone but each other, it spat out nonsense instead. Any eavesdropper heard chatter about homework or new Duel Disk upgrades. Even in the safety of their own rooms, the air crackled – the universe itself seemed determined to keep them isolated in their confusion.

**Chapter 2: Wearing the Mask**

The first day was a disaster. Leo – now Luna – fumbled through breakfast, the training bra digging in, each movement reminding him of what wasn’t his. He was forced by Luna’s body to act with Luna’s gentle politeness, then breeze into Duel Academy as if he were used to being soft-spoken, tired, shy. Even his steps couldn’t help but follow Luna’s patterns, hands fluttering when spoken to, words spoken in Luna’s diffident cadence.

He tried to lag behind, but the body rebelled – a smile unlearning his boisterous habits, a softness in his voice.

Luna – now Leo – was the opposite. She thundered through the halls with his reckless joy, eager to try everything. She greeted classmates like old pals, threw herself into duels with wild abandon, even clashed with Jack over who was cooler. Leo watched from across the cafeteria, opposite bodies, opposite lives, knowing anyone who looked wouldn’t even see the real truth.

As the days became a week, Luna thrived in Leo’s body. She wore his shorts and blue sneakers like armor; she mastered his swagger. She bickered with teachers and raced through homework, laughed loud and voiced bold, while Leo watched, mouth dry, seeing not his sister but a stranger living his old life.

It only hurt worse when Leo retreated at night, closing Luna’s door, and finally, mercifully, unlatching the bra she wore all day. Alone, he could breathe; the discomfort faded into an aching sorrow – not just in his chest, but somewhere deeper. Every touch, every glance, every silent change reminded him: this was permanent. His body was celebrating his presence, cycling through things he never expected. Even Luna had never had her period before the swap, but now, Leo's new body hurled him into it.

**Chapter 3: A New Kind of Duel**

A week after the swap, at school, a boy approached – older, smiling in a way that made Leo’s skin crawl. “Hey, Luna,” he began, voice gentle, hopeful, “Would you want to go out this weekend?”

Leo froze. Everything inside screamed, No, no way – but Luna’s body twisted his tongue: “Sure, that sounds great.”

Why couldn’t he say no? Why did Luna seem so happy now, never tired, never distant? Even when Leo caught her eye, he saw none of the old sister’s reserve. Instead, she looked back bold, bright, untroubled, as if she’d always been him.

Leo whispered to Luna alone that night, both in opposite rooms. “Are you… happy?”

She grinned, through his old face, “Happier than ever, bro! I’m finally living like I always wanted.”

He lay awake, staring at the moonlight, the ache of his new life, and whispered her – now his – name.

He wasn't sure he could ever be himself again.

---

**End of Sample—exploring Leo’s gender dysphoria, the overwhelming sense of loss, and the unraveling of their identities as the swap forced both twins to confront—and reflect—what it meant to embody each other, forever, unseen and unchangeable.**

This story was generated by user CodeSam with assistance by one of OpenAI’s large-scale language-generation model; prompts used to help generate the story are shown below.

Images were generated with OpenAI's AI system, DALL·E 2, or uploaded by the user.

AI Prompts

Prompt: Leo, short for Leonard, known as Lua in the Japanese version, sometimes romanized as Rua (see below), is Luna's twin brother, and was one of the Signers who possessed the Heart Mark of the Dragon (as well as the only other Signer aside from Yusei Fudo, who has been able to weaken the "Meklord Emperors"[6][7][8]). He and Luna aid Yusei, whom they admire and support, in his Duels. Leo is the older twin of the two and has a lively and blundering personality. He and his sister also have a vignette before each episode in the Dark Signers arc known as card of the week. Leo's outfit is similar to his sister's; it consists of a short-sleeved white jacket over a sleeveless dark blue shirt with golden markings that differ from Luna's shirt. He also wears white shorts with a dark blue belt and blue sneakers of the same color. Leo also has a bracelet on each wrist, and his blue-green hair is pulled into a single, high ponytail with two shoulder-length bangs on both sides of his face but when he doesn't wear it up (like when he's sleeping) it looks like Luna's in the same situation. He carries a Duel Disk with a blue and white trim on his left arm, which was originally too big to fit until Yusei modified it. While on his Duel Board, Leo would wear a blue and yellow helmet, blue pads for his elbow and knees with black and blue gloves. On formal occasions, he wears a blue suit with a white shirt and blue bowtie under the jacket, and black loafers with white, knee-high socks. When he's sleeping, he wears light blue pajamas. When at school, he wears the Duel Academy boys uniform with a green backpack. Personality Leo is a lively character (in the dub he is very carefree and acts dumbly), but is shown to get serious when the situation calls for it. Occasionally he will doubt his skill but his sister Luna always looks towards him for encouragement. He started off as cocky and sure of himself, but became more mature and careful as the series progressed. He is also shown to be very perceptive in season 2, as he immediately felt something was not right about Lester even when he had not acted suspicious yet.[9] He is also shown to not hold grudges against those who harm his sister if they change their ways, such as with Aporia.[10] Abilities Although he seems ordinary at first glance, Leo has some sort of ability in which he can somehow talk to Luna, even if she's in the Spirit World. This also awoke her from her coma when she was three years old. He also can get in the Spirit World if Luna repeatedly calls out to him while she's there, as seen during the Duel with Professor Frank. When Luna had been hypnotized by Frank, Leo entered a trance too (for unexplained reason), and eventually fell unconscious after constantly calling out to Luna. However, he does not appear to be aware of any of this[11][12] Leo lives together with Luna in the Tops residential area. They spend most of their time alone together as their parents are usually at work. They are educated via the internet, so they spend most of their time inside. Later, both he and his sister attend Duel Academy. Leo lives together with Luna in the Tops residential area. They spend most of their time alone together as their parents are usually at work. They are educated via the internet, so they spend most of their time inside. Later, both he and his sister attend Duel Academy. Luna was selected to participate in the Fortune Cup, but because she didn't feel like participating, Leo planned to disguise himself as her and compete instead, and Luna adding the saying "Leo wears makeup!". The next day, Leo enters the Fortune Cup in disguise as Luna, but quickly loses to Greiger after a hard-fought Duel. Using Zigzix's Signer-detecting technology, Lazar determines that Greiger Dueled Leo instead of Luna. During the consolation Duel where Luna Dueled Professor Frank, Leo was hypnotized along with his sister and later reveals to her that he had unconsciously given himself the task of protecting her while she protects the Duel Monsters Spirit World. He was awakened from his trance when the Duel ended. At the end of the first day of the Fortune Cup, it is shown that Yusei would be paired against Greiger the next day. As Bolt Tanner wondered what kind of Duel Runner Greiger had, Leo tried to find out and ran off. He snuck into Greiger's garage, and got frightened by the look of Greiger's Duel Runner, The Beast. His scream triggered a security alarm, locking him in the garage, where he slept until Greiger returned and found him sleeping. At the end of the Fortune Cup, Leo, along with his sister, learns what a Signer is. He is worried about Yusei going by himself to Satellite after what the Dark Signer said. After Yusei's Duel with Kalin Kessler, Tanner and Tenzen Yanagi arrive at their home as they discuss the current situation. They are worried about whether Yusei had already fought against a Dark Signer or not. Then he asks Luna if it's true that "Power Tool Dragon" battled alongside the other Signer Dragons against the Earthbound Immortals, to which she responds that it may have. Leo immediately assumes himself to be the fifth Signer and proclaims that he must also protect Luna as well. Yanagi re-asks and Luna says she only said yes to cheer up Leo. In order for all the Signers to work together to fight the Dark Signers, Leo proposes that they seek help from Akiza. As they accept, he learns about the Arcadia Movement. Leo along with Luna, Tanner, and Yanagi, then go in search of Akiza. Upon reaching the Arcadia Movement headquarters, they are tricked by Sayer. Leo then wakes up chained, and is made to Duel Sayer as a test in order to determine if he possesses any sort of ability, since he is Luna's twin brother. Leo also learns that Sayer plans to use his Psychic Duelists as soldiers in a war against the world for all the discrimination they have suffered. As the Duel progresses, Sayer attacks Leo directly, making him cry, however Sayer tells him not cry and instead fight. Due to the fact that he has revealed his true purpose, Leo's life is at stake now, and in order to save himself, he must awaken his hidden abilities. Despite his determination after Summoning "Power Tool Dragon", the Duel ends in Sayer's victory. Leo then falls to the floor and passes out. He is later seen on a bed, with Luna watching over him. He and Luna are then rescued by Tanner and Yanagi, and before being able to leave the building they all witnesses the Duel between Akiza and Misty Tredwell. After the building begins to collapse due to assault of the "Earthbound Immortals" on it, Tanner takes the two of them outside to safety. After Akiza lands in the hospital in a comatose state, Leo, along with Luna, as well as Jack are present within. As with the rest of the people there, he witnesses the Duel between Yusei and Akiza. After it concludes with Yusei's victory, Leo tags along with Luna and the other Signers as they are invited by Rex Goodwin into his place, as he wants to reveals to them some secret concerning the Crimson Dragon, as well as some sort of deep connection between them and the Dark Signers. There he learns about their own "fate" which is responsible as for that the Signers to have met in someway. Leo finally learns that the fifth Signer was already awakened long ago and that it will appear later on, and also about the Dark Signer's true identity involving the Netherworld, their abilities, and use of "Earthbound Immortals". After that Leo seems to accept the fact that he is not a Signer, he tells Luna that then there's no reason for him to go with them to Satellite, as the only thing he could if he did is to get in their way. However his sister tells him that he doesn't need to be a hero, just to be there to protect her as he promised from the start, so he accompanies her and the other Signers to Satellite. Akiza, Leo, and Luna eventually meet up with Yusei and Jack, giving Yusei a morale boost and support so he will hopefully change his mind about refusing to duel Kalin by saying that they will all fight along his side. Yusei and Jack both have friends to fight for, along with the protection of Satellite and New Domino City. An argument between Jack and Leo breaks out, as Leo says that he will definitely become cool like Yusei and Jack, but Jack insists that Leo will never become cool. The Signers, along with Leo and Mina Simington, all board a helicopter to Satellite being flown by Trudge. When they all arrive to Satellite they are greeted by Martha. However, the reunion is cut short as Yusei finds out that Rally, Crow, and the others have disappeared. Later during dinner, Roman suddenly appears, demanding to Duel. As Yusei accepts to Duel, accompanied by Akiza, Jack and everyone else take Martha and the kids to a safer place. As Roman and Yusei's Shadow Duel is about to begin, Luna, Leo, and Jack become aware of it as their Marks of the Dragon began to react. After Yusei's match against Roman concludes, Jack, Akiza, and Luna, along with Leo, are present as the rest of the Dark Signers reveal themselves. Later on, as each one of the Signers is set on defeating their respective opponent, they split up to each of the four control units of the Original Ener-D Reactor. As Luna and Leo are taken by Trudge to where Devack is waiting, she instead travels into the Duel Monsters Spirit World in order to free Ancient Fairy Dragon. Due to this, Leo bravely challenges Devack to a Duel in her place, as he is determined to fulfil his promise of protecting her. Despite Devack's warning that Leo isn't a Signer, and therefore he won't be able to beat him, the Duel begins and Devack is able to quickly inflict damage to him. However, Leo counterattacks by Synchro Summoning "Power Tool Dragon", his ace card. Devack then unleashes his Dark Synchro Monster, "Zeman the Ape King". Leo, after getting a strategy together, is able to push Devack back by destroying "Zeman the Ape King". He gets backed into a corner again when Devack Summons "Earthbound Immortal Cusillu". After Luna comes back, she sees her brother in trouble and takes over for Leo as a way of making it up to him. She and Leo then win the Duel together. After Crow's Shadow Turbo Duel against Greiger ends, Leo, along with Luna, and Trudge all witness the rematch between Yusei and Kalin. After the extreme Duel between the two finally ends, Leo, Luna, and Trudge accompany Yusei as he decides to go to the Original Ener-D Reactor directly in order to Duel against Roman one more time. He watches the Duel between Yusei and Roman with Yusei winning. He watches in horror as Roman blows up the bridge and drops Yusei into the Ener-D Reactor. Leo at first believes that he is dead, but, like everyone else there, is surprised when Yusei returns, though unconscious. And after he wakes up and that everyone eventually go up through the same stairs they use before, they all notice in the distantance the purple sparks, to which they can only believe means that Jack has won and also activated the third Tower. Knowing that the last Tower to be activated is Akiza's task, Leo, Luna, Trudge, and Yusei all go to where it is. Arriving at and old and abandoned amusement park, the twins began looking for her and Mina. After Sayer awakens Akiza's power and is transformed once again into the Black Rose, they notice the tornado that has materialized after she Summons "Black Rose Dragon". As they then get to the area where the Duel is taking place, they both notice Akiza's powers having once again manifested even stronger. After Mina and Trudge arrive, they all watch the outcome of the match, with Akiza emerging victorious. However they notice that it's too late for the last Tower to be activated, as the sun has already set. They then see the Condor geoglyph that has appeared on the sky. The King of the Netherworld not only revives, but also is heading towards the formed Condor geoglyph, which is over New Domino City. However, the Crimson Dragon appears once again to take everyone to Rex Goodwin's mansion. Where he reveals to them his identity as the final Dark Signer and then declares that a Shadow Turbo Duel will be held within Condor geoglyph as a ritual to welcome the King of the Netherworld. As Yusei, Jack, and Crow accept the Duel in order to stop the resurrection of the King of the Netherworld, Leo cheers for them along with his sister and the rest of the people who can only support them by watching while hoping they win. Luna, known as Ruka in the Japanese version, sometimes romanized as Luca, Luka, or Ruca, (see below), is Leo's fraternal twin sister and a Signer who possessed the front claw Mark of the Dragon. She and Leo aid Yusei Fudo, whom they admire and support, in his Duels. Luna is the younger, frail, calmer, more collected of the twins. Luna tends to get tired right after a Duel. She has the ability to communicate with Duel Monsters after having spent ample time with Duel Spirits in a different dimension during a coma. She and her brother also have vignette series before each episode in the Dark Signers arc known as card of the week. Appearance Luna's usual outfit is similar to her brother Leo's, consisting of a light pink short-sleeved jacket over a long-sleeved red shirt with golden markings. She also wears light purple shorts with a red belt and sneakers with black and pink markings and high socks. She has gray-gold eyes just like her brother. On formal occasions, Luna wears a pink dress, a white cardigan and a pink ribbon below her neck. When she's sleeping, she wears pink pajamas with a nightcap. When at school, she wears the Duel Academy academy girls uniform with a red backpack. Luna's green hair is done up in two high ponytails on either side of her head with two shoulder-length bangs on both sides of her face. Her Duel Disk has a pink and white trim. It was modified by Yusei to fit her left arm. While on her Duel Board, Luna would wear a pink and orange helmet, pinks pads on her elbows and knees and red gloves with a pink stripe in the middle. After the timeskip she grows her hair out and forgoes the ponytail and wears a pink blouse and sandals with white shorts. Luna is a very polite, kind and sweet young girl. She does occasionally criticize her brother (more often in the dub), but deeply cares for him.[6][7] She also has shown to be quite intelligent and calculating in her Duels[8][9] Linework by Kazuki Takahashi used the spellings Rua and Ruka for the Japanese names of Leo and Luna. Throughout the Japanese anime, the spellings have alternated between Lua and Luca and Rua and Ruka. The official subtitles for Yu-Gi-Oh! 5D's confirmed the English translation to be Luca, however Takahashi's reference confirms it to instead be Ruka.[10] The differing names is due to Japanese speakers pronouncing "L" and "R" as the same sound. The 4Kids Entertainment website listed Luca's English name as Luna in the characters page, while Lua had his changed to Luka. Luka later had his name changed to Leo, while Luna's stayed as Luna. Luna has the unique ability to sense and communicate with Duel Monster Spirits.[11] Her most notable spirit partners are Kuribon, Regulus and Ancient Fairy Dragon. In addition to her connection with Duel spirits, she has also been able to travel to the Duel Monsters Spirit World at the risk of having her body comatose in the real world (with the exception of when Regulus cast a spell to transfer her to the Spirit World.[12]).[11] She also has an ability to sense someone at times when they're in danger, such as when her brother was against Devack and in pain, or when Yusei was being shocked by officers near her house. In addition to this, she can feel or sense a person's Deck, such as before Yusei woke up, and Akiza's first Duel in the Fortune Cup where she could feel Akiza's Deck suffering.[13][14][15][16] Health Luna is a very frail girl, getting very easily tired and does not get out much because of it.[7] When she was younger, she fell into a coma for several days. However, she starts to get out more as the series progressed, and becomes less frail and tired after the Dark Signers arc, even going to Duel Academy with Leo[17], but is still badly hurt when taking on any real damage.[18] She also suffered a heart attack after receiving several electric shocks and watching Leo die.[19] Luna lives together with her twin brother Leo in the Tops residential area. They spend most of their time alone together as their parents are usually at work. They were initially educated via the internet, so they spend most of their time inside. Luna has been Dueling since the age of three. Once, she lapsed into a coma after a Duel, and did not awaken for a month. During that month, her mind lived in the Duel Monsters Spirit World under the protection of Ancient Fairy Dragon, one of the Signer Dragons. Before waking up, she promised she would always be there to defend the Duel Spirits from evil that threatened the land. However, the pressure from undertaking such a task alone was too much and Luna had to forsake her promise, allowing the Duel Monsters Spirit World to fall later into the influence of Zeman the Ape King, who without much difficulty with the help of his army, turned most of the spirits into stone, and eventually imprisoned them. He was even able to capture and rock-seal Ancient Fairy Dragon's spirit into the mountains. Luna later returns and saves the spirits with some help from Leo. Luna was selected to participate in the Fortune Cup. She was told she was randomly selected, but was invited so Iliaster could confirm that she is a Signer. However, not up to participating, Leo planned to disguise himself as her and Duel in her place. Due to their Marks, Luna was able to sense Yusei when he was attacked by Sector Security. She and Leo rescued him after his Duel with Trudge and the resultant Duel Runner crash near their home. Yusei wanted to leave, feeling that he was putting them in danger, but Leo talked him into a Duel. After Yusei won, Luna and Leo manage to get him to stay for the night. They awake the next morning to find that Yusei had left after modifying their Duel Disks to fit their small arms. The next day, Leo entered the Fortune Cup disguised as Luna, but using Zigzix's Signer-detecting technology, Lazar was not only able to determine that Greiger Dueled Leo instead of Luna, but also that Luna is a Signer. Luna faced off against Professor Frank due to Rex Goodwin's consolation game, but in the middle of the Duel, both she and Leo are hypnotized. Luna's conscious self awakens in the Duel Monster Spirit World, where she sees the degradation of the dimension and decides to uphold her promise from then on. Before she concludes the match, Luna is called a Signer by Frank, although unaware at that moment of its meaning or its relationship with her Claw Mark of the Dragon. Only Yusei becomes aware of her being one, though he does not tell the others. Eventually, though, they learn this after his Duel against Akiza Izinski. She witnesses the appearance of the Crimson Dragon during Yusei and Jack Atlas' title Duel. Because of the Duel, Luna, along with the three other Signers, are transported to an alternate dimension. There they are shown two visions; one of the Stairway to the Dragon Star, where the People of the Stars were worshiping the ancient Signers, and the other showing Satellite being destroyed, and in its place the appearance of a spider geoglyph. After that, Luna and Akiza are the only ones to witness Jack's defeat. As they all return to the stadium, she reunites with Yusei in order to leave through an underground tunnel. Luna talks to Yusei about the vision, who responds that he doesn't know what it means, but that in any case he must prevent it from happening. She also asks him what is a Signer, to which Yanagi intervenes in order to answer to her. Luna learns its meaning and its relationship with her along birthmark, along with the fact that that Yusei, Jack, and Akiza are Signers too. Dark Signers After the Dark Signers started taking action, Luna has been having vivid dreams of the Signer Dragons and the Crimson Dragon battling an unknown evil. Ancient Fairy Dragon gets pulled into an abyss, showing that the Dragon's card is currently with the Dark Signers. As Yusei is about to come face to face with Kalin Kessler, his Mark of the Dragon reacts along with Luna's, Jack's, and Akiza's. She notices this and Leo does too as he is nearby. Luna is able to sense that Yusei is the reason of why her Mark of the Dragon glows. After Yusei takes a hit by "Earthbound Immortal Ccpac Apu", Luna's Mark of the Dragon gets etched into her arm. Leo explains to Tanner and Yanagi that Luna is frail and therefore she can't go out much. Luna accompanies Leo, Tanner, and Yanagi to the Arcadia Movement, where they meet Sayer. He induces them to sleep with gas, wanting to make Luna a member of the organization due to her powers. Luna wakes up next to Akiza, where they both watch the Duel between Sayer and Leo. Akiza tells Luna that Sayer wants to test her brother to find out if he possesses any similar powers. Leo passes out upon losing as Luna calls out to him. After the Duel, Akiza informs her that Leo isn't in danger. Luna clarifies Leo doesn't possess any powers, but he was still kept in a place with Luna. Akiza tells her that in any case the Arcadia Movement will be her new home, as she doesn't want Luna to walk through the same path she did; the path of being feared and abandoned by others because of her powers. Luna asks Ancient Fairy Dragon for help, but her spirit says that she cannot rescue her and that she is witnessing the posing threat of the Dark Signers. In order to set her free, Luna must join forces with her servant, Regulus, who will eventually appear to her. Once Ancient Fairy Dragon is set free, she promises to protect Luna from the enemy. After Tanner frees her and Leo, while fleeing the building, she senses Akiza in a Duel as her Mark of the Dragon begins to glow. As she decides to find her, the four of them run into Misty and Akiza's Duel. As Luna notices the lizard Dark mark, she recalls the vision of the battle between the Crimson Dragon and the "Earthbound Immortals" again. Right as Misty is about to Summon her "Earthbound Immortal", Luna's dragon birthmark protects her, Leo, Tanner, and Yanagi from being sacrificed for its Summon. Tanner gets her and Leo out in time as the building collapses. After Akiza lands in the hospital in a comatose state, Luna is there along with her brother and Jack. As with the rest of the people there, she witnesses the Duel between Yusei and Akiza. After it concludes, Akiza decides to help them in their fight against the Dark Signers. After it, Luna along with Leo and the other Signers are invited by Rex Goodwin into his house, as he wants to reveal to them some secret concerning the Crimson Dragon. She learns from him that those who are Signers exist within some sort of "fate", derived from the Crimson Dragon's power, one which cannot be escaped from. That strange fate was the one responsible for that all of the four Signers to have actually met in someway. Thus, the "Fate of the Signers" unites each and every one of Yusei, Jack, Akiza and her own destiny together in order to guide them all. Nonetheless, according to Goodwin the four of them are not only Duelists chosen by the Crimson Dragon itself, but they are also the reincarnations of the ancient Signers themselves. Also already predicted thousands of years ago the four of them would encounter one another. She also learns about the Dark Signers' abilities involving their powers and use of the "Earthbound Immortals". According to Goodwin, their powers that manifest in a Duel come from the underworld. Also as they appeared on the city, many casualties occurred just like in Satellite due to their Immortals. Luna along with the others realize the shocking truth behind the transformation of an individual into a Dark Signer: It can't be reverted due to the fact those individuals are dead and that they are resurrected because of a powerful phenomenon occurring on the other side of the Underworld. After this she cheers Leo up, who feels he can't be a hero or protect her because of having lost to Sayer, by saying he doesn't have to be a hero, and to just protect her like he always has. Like Jack and Akiza, she's present along with her brother during and after Yusei's match against Roman Goodwin. After it concludes, the rest of the Dark Signers show themselves, as their ancient battle is about to commence. Later on as each one of the Signers is set on defeating their respective opponent, they split up to each of the four control units of the Original Ener-D Reactor. As Luna and Leo are taken by Trudge to where Devack is waiting, she instead travels into the Duel Monsters Spirit World in order to free Ancient Fairy Dragon. Due to this, Leo bravely challenges Devack to a Duel in her place, as he is determined to fulfill his promise of protecting her. In the Spirit World, Luna searches for Regulus. She gets chased down by an army of monkey spirits commanded by Zeman the Ape King, who is Devack's Dark Synchro Monster. The monkey army captures "Kuribon", "Sunny Pixie", and "Sunlight Unicorn". She evades them with the help of a spirit named Torunka. Luna eventually finds Regulus at Pojar Forest and tells to the Lion the promise long ago made to Ancient Fairy Dragon. However, because of the Cursed Needle in its ankle, he understands her in the opposite way. After a chase, Luna is finally able to dispose of the Needle and convince the White Lion of her righteous intentions by showing her Mark of the Dragon. After that Regulus, Luna, and Torunka set off to Zeman's castle. They are able to get inside by tricking Zeman into thinking that Luna is a servant of Zeman and has caught Regulus. She also tells Zeman to curse both Regulus and Ancient Fairy Dragon in order to minus Ancient Fairy Dragon completely. Zeman falls for this and is about to release her. However, Zeman finds out they were trying to trick him and orders his army to attack them. He is eventually killed by Regulus, and at the same moment, Leo defeats him in the real world. Devack then Summons his "Earthbound Immortal Cusiullu" and attacks Leo, who withstands the assault. Torunka sends Luna back to the real world, where she takes over the Duel for her injured brother. Devack then attempts to use "Ancient Fairy Dragon" against Luna, but she forces him to sacrifice it in order to save his "Earthbound Immortal" from being destroyed, which allows her to Summon her dragon to her side of the field. Once this is done, Regulus appears and breaks the dragons' chains, freeing it at last. Luna then proceeds to use both "Ancient Fairy Dragon", equipped with "Pain to Power" and "Power Tool Dragon", equipped with "Rocket Pilder", to destroy "Cusillu" and defeat Devack. After the Duel, Luna picks up the "Ancient Fairy Dragon" card and also finds a "Regulus" card. Following Crow's Shadow Turbo Duel against Greiger, Luna along with her brother, Trudge, and Crow himself witness the rematch between Yusei and Kalin Kessler. After the extreme Duel ends, Luna, Leo, and Trudge accompany Yusei as he decides to go to the Original Ener-D Reactor directly in order to Duel against Roman one more time. She watches the Duel between Yusei and Roman as it ends up with Yusei´s victory. After the Duel, she watches in horror as Roman blows up the bridge and drops Yusei into the Ener-D Reactor. Like the rest she´s glad, when Yusei returns, though unconscious. After he finally wakes up and that everyone eventually goes up through the same stairs they used before, they all notice purple sparks in the distance. She then knows that not only has Jack won, but also activated the third Tower. Knowing that the last Tower to be activated is Akiza´s task, Luna along with Leo, Trudge, and Yusei all go to where it is. Arriving at an old and abandoned carnival, they split and began looking for her and Mina, except for the twins who look for them together. After Sayer awakens Akiza's power and is transformed once again into the Black Rose, they notice the tornado that has materialized on the carnival caused by the Synchro Summoning of "Black Rose Dragon". As they get to the area where the Duel is taking place, they both notice Akiza´s powers having once again manifested even stronger. After Mina and Trudge arrive, they all watch the outcome of the match, with Akiza emerging victorious. However, they notice that its too late for the last Tower to be activated, as the sun has already set. The Condor geoglyph appears in the sky, while the King of the Netherworld revives from the Original Ener-D Reactor's crater. Kuribon appears to Luna, telling her that they mustn't let the King reach the Condor geoglyph. As the King begins moving towards it, the Crimson Dragon appears and transports Luna and her companions to Rex Goodwin's mansion, where the Condor geoglyph is located. Goodwin stands at the top of the Stairway to the Dragon Star, where he reveals himself to be the final Dark Signer and attaches Roman's arm to himself. Goodwin declares that a Shadow Turbo Duel will be held within the Condor geoglyph as a ritual to welcome the King of the Netherworld. As Yusei, Jack, and Crow accept the Duel in order to stop the resurrection of the Underworld Ruler, Luna and the rest of the party cheer for them. However, when "Earthbound Immortal Wiraqocha Rasca" is Summoned, it tries to cheat by Summoning a flock of demonic black birds to attack Yusei, Jack, and Crow. Akiza and Luna are able to provide aid by manifesting "Black Rose Dragon" and "Ancient Fairy Dragon" to fight the horde. it was shown that she attended a Duel Academy as a young teenager. In this one, the uniforms look a lot more formal and gallant. The lower class females wear deep burgundy colored jackets and a yellow bow tie,while the lower class males wear blue jackets with either a white or blue shirt and a red tie. The upper class females wear long knee length red jackets, black tights, and don't wear the yellow bow ties. It is unknown if the upper class males have to wear the red ties or if they are also permitted to not wear them. The lower class backpacks are pink (females) and Deep Aquamarine (males) and their Duel Disks are stored in it with the long side folded against the right side of the backpack. The upper class are allowed to bring briefcases instead if they want. make a body swap that start at the Fortune Cup that deals with gender dysphoria the point of view is leo as luna and they body mess with there pronouns that match there new bodys and luna before the swap breast were start to come in and has to wear training bras now leo has to deal with that this only allow to take it off at night to sleep or alone in his new room alone this is a part of the yugioh 5ds the swap cannot be undone and no one but Leo and luna can know thanks to whatever cause it force them not to talk about it to anyone but each other and if anyone is in ear shot near them will hear something else and there body try and force them to act like each other around other people what happen when they were wide awaken when it happen the swap force they outfits off and then when it was done they were teleport into each other rooms as there body turn into a copy of one another then they outfits of each other force themselves onto there new body's. worst as the days go past Leo can see luna love her new body to the point that she act just like him he could not tell she was not him even when look in the eyes it feels like look at someone who no longer themselves what worst luna when she was in her body never had her time of the month even with her breasts growing all ready leo fill like luna body is celebrating he in her body with it happening just after he entered luna body. Also a boy asked him out and luna body made him accept thanks to luna not want to say no.

Response: **Title: Crossed Hearts** **Chapter 1: The Switch** Dawn had barely brushed the sky, but the Fortune Cup had both Leo and Luna wired with excitement. Leo, eager for thrills, was scrambling into Luna’s uniform – makeup and all – ready to bluff his way into the tournament in her place. Luna lay curled on her twin bed, reluctant and tired, breasts starting to swell against her new training bra. They’d been giggling about Leo’s ridiculous plan all night, voices hushed through the wall, every giggle punctuated by Leo’s insistence that “I’ll win as you and make you proud!” Luna snorted, “Just remember, Leo wears makeup!” Neither imagined the world itself was about to turn inside out. It happened wide awake: first, a pulse of dizziness as their bodies threw off their clothes in an impossible swirl – white and pink jackets tangled in midair, a blur before reality snapped back in. Leo gasped, looking down. Not at his sturdy chest, but Luna’s forming curves, training bra squeezing tight – and the unmistakable ache of new breasts that would force him into Luna’s drawer to find something soft to hold them. Luna, in Leo’s room, was breathing hard, chest flat and arms clumsy. Twin beds, twin faces – but now everything wrong. The swap was absolute. No spell, no explanation: their souls had punched through flesh, Leo was Luna, Luna was Leo, and a silent, magic force had thrown them into each other’s rooms, forced their opposite outfits onto their new bodies. Leo twisted, looking for his own hands, but the mirror told the truth – slim wrists, shoulder-length green hair in twin ponytails, Luna’s worried eyes looking back, wide and soft. A terrifying rule hung over them: whenever they tried to speak a word about their swap to anyone but each other, it spat out nonsense instead. Any eavesdropper heard chatter about homework or new Duel Disk upgrades. Even in the safety of their own rooms, the air crackled – the universe itself seemed determined to keep them isolated in their confusion. **Chapter 2: Wearing the Mask** The first day was a disaster. Leo – now Luna – fumbled through breakfast, the training bra digging in, each movement reminding him of what wasn’t his. He was forced by Luna’s body to act with Luna’s gentle politeness, then breeze into Duel Academy as if he were used to being soft-spoken, tired, shy. Even his steps couldn’t help but follow Luna’s patterns, hands fluttering when spoken to, words spoken in Luna’s diffident cadence. He tried to lag behind, but the body rebelled – a smile unlearning his boisterous habits, a softness in his voice. Luna – now Leo – was the opposite. She thundered through the halls with his reckless joy, eager to try everything. She greeted classmates like old pals, threw herself into duels with wild abandon, even clashed with Jack over who was cooler. Leo watched from across the cafeteria, opposite bodies, opposite lives, knowing anyone who looked wouldn’t even see the real truth. As the days became a week, Luna thrived in Leo’s body. She wore his shorts and blue sneakers like armor; she mastered his swagger. She bickered with teachers and raced through homework, laughed loud and voiced bold, while Leo watched, mouth dry, seeing not his sister but a stranger living his old life. It only hurt worse when Leo retreated at night, closing Luna’s door, and finally, mercifully, unlatching the bra she wore all day. Alone, he could breathe; the discomfort faded into an aching sorrow – not just in his chest, but somewhere deeper. Every touch, every glance, every silent change reminded him: this was permanent. His body was celebrating his presence, cycling through things he never expected. Even Luna had never had her period before the swap, but now, Leo's new body hurled him into it. **Chapter 3: A New Kind of Duel** A week after the swap, at school, a boy approached – older, smiling in a way that made Leo’s skin crawl. “Hey, Luna,” he began, voice gentle, hopeful, “Would you want to go out this weekend?” Leo froze. Everything inside screamed, No, no way – but Luna’s body twisted his tongue: “Sure, that sounds great.” Why couldn’t he say no? Why did Luna seem so happy now, never tired, never distant? Even when Leo caught her eye, he saw none of the old sister’s reserve. Instead, she looked back bold, bright, untroubled, as if she’d always been him. Leo whispered to Luna alone that night, both in opposite rooms. “Are you… happy?” She grinned, through his old face, “Happier than ever, bro! I’m finally living like I always wanted.” He lay awake, staring at the moonlight, the ache of his new life, and whispered her – now his – name. He wasn't sure he could ever be himself again. --- **End of Sample—exploring Leo’s gender dysphoria, the overwhelming sense of loss, and the unraveling of their identities as the swap forced both twins to confront—and reflect—what it meant to embody each other, forever, unseen and unchangeable.**

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