Disclaimers:

I do not own Sailor Moon and Yu-Gi-Oh! Go Rush!. Sailor Moon is written by Naoko Takeuchi in manga form and aired as a series by Toei Animation and TV Asahi in Japan and by Kodansha Comics in North America. Yu-Gi-Oh! Go Rush! is created by Sugita Naoya and aired as the seventh spin-off of the Yu-Gi-Oh! series, Yu-Gi-Oh! SEVENƧ, by Bridge Inc. and TV Tokyo in 2022. There is no dubbed version of this Yu-Gi-Oh! series since the series just came out a year ago.

WARNING: Spoilers if you have never watched this spin-off of Yu-Gi-Oh!. ( •̀ω•́ )σ You have been warned! s( ^ ‿ ^)-b

A small, blonde bottom layered and dark-red upper layered haired boy was seen running into the park. With a red spike at the front of his head resembling a falling meteor, this boy was trying to find aliens within his hometown of Mutsuba, a small countryside town. The boy's red eyes did light up when he spotted a familiar golden-blonde haired girl swinging by herself, her crystal blue eyes having a small hidden sadness. The boy frowned as he did see that particular sadness once more before rushing over to the swings. "Usagi-chan," exclaimed the boy.

"Huh," questioned little Usagi before turning her eyes at the running boy, "Yūhi-kun!"

"It's been so long since I've got to hang out with you," said Yūhi.

"Un," nodded Usagi, "It was very boring for a couple of days.

"Gomen, gomen," said Yūhi sheepishly, "Demo, you know how Yuamu is."

"Īe," said Usagi with a shake of her head, "We aren't in the same class, remember, Yūhi?"

Yūhi sheepishly rubbed the back of his head as he thought about it. He became friends with Usagi before Yuamu and he became the owners of the Ultra-terrestrial Trouble Solutions Company, or UTS for short. Yūhi remembered that he was sad that he wasn't with his twin, Yuamu, during 1st Grade and was hard to be friends with people. However, Usagi came up to him during lunch and started to talk with him about different lives in the Solar System. That's how he became enthralled by aliens and what was beyond Earth… Usagi's stories. Though, when they grew up a bit more, Usagi confided in him that she was a reincarnated alien from Earth's Moon, her now being a half-Earthling. It was then and there that Usagi and his friendship cemented more. "Anyways," said Yūhi who didn't want to admit that he was wrong, "Did you hear about a new game called Go Rush dueling?"

"Hai," said an excited Usagi, "It seems like a fun game to play!"

"Do you want to start our own decks and figure out how to play together?"

"What about your UTS business," questioned Usagi.

"I'm sure Yuamu will be alright without me," said Yūhi, "Besides, I rather learn more about dueling with you."

"Yūhi-kun," murmured Usagi.

"So, how about it Usagi-chan," questioned Yūhi.

"Alright," said Usagi, "Demo, let's try to find cards that reflect us."

"Reflect us," questioned Yūhi.

"Un," nodded Usagi enthusiastically, "Like how you are totally fascinated with dragons and technology."

"I-I just want to find that cosmic dragon you talked about in your stories," stuttered out Yūhi.

Usagi giggled as she got off of the swings. She knew that she should have kept her identity a secret, yet since Chaos was split and sealed away, there was nothing left for her in her old life. Her Senshi were destroyed as their Star Seeds merged with her own. Let's not forget that her friends in Jūban were spelled to forget everything about her due to her wish on the Ginzuishō. It wasn't until she opened her eyes once more, her body so small that it couldn't even lift herself off of whatever was holding her. When she opened her eyes, she was surprised to see that the Galaxy Cauldron gave her a second chance at life with new parents in Mutsuba Town. It was chance that she found Yūhi sitting by himself in 1st Grade and befriended him through her stories. Unlike Naru's friendship, she wanted her friendship with Yūhi to have no lies to hold her back. It was now that Yūhi became her best friend… maybe the only friend who will know everything about her, past life and all. "Ne," said Usagi, "Shall we head to the game store to start our decks?"

"Yeah," said an enthusiastic Yūhi, "I'm sure that your deck is going to be around planets!"

"We'll see," giggled Usagi, "I'm sure that your deck will be just as unique, Yūhi-kun."

- 5th Grader Yūhi: 3 Months After Coming Back From The Velgear Star Cluster –

An eleven-year-old Yūhi was wearing his usual clothes that consists of a yellow jacket with numerous zipper-sealed pockets, a white shirt with a black line down the middle that ends a third of the way down his chest, black baggy pants with tight cuffs, charcoal socks and red shoes with a white under-layer and yellow laces as he snuck away from the underground sector of the Alien Residential Area that held mostly all of the aliens that came to Mutsuba Town. He was sneaking away from his family from that area because once Mutsuba Town came back from helping an alien-turned-friend, Yudias Velgear, an organization called the Monitoring Interstellar Kriminals, or MIK for short, was taken over by MIK's commander, Ryūgū Phaser. He, along with his brother Tremolo, started to capture all of the aliens and those who befriended the aliens before chucking them all into the Alien Residential Area. That means that Yūhi was wanted by the MIK people, and where he was going, he didn't want the person to get in trouble. Sneaking towards a two-story house, Yūhi quickly climbed the side of said house to get to a balcony. He landed safely onto the balcony before knocking on the sliding door. Light blinded him temporarily before the curtains pulled back to reveal his best friend, Tsuki Usagi. "Ōdō Yūhi," said Usagi with a smile.

"Sashi-buri, Tsuki Usagi," said Yūhi with a smirk.

"Still can't believe my new name is basically the same as my past life," muttered Usagi.

"Demo," teased Yūhi who heard her murmur, "It's easy to remember your name that way, ne?"

"I guess," said Usagi, "Now, Yūhi-kun, come in quickly. I don't want you to get captured from the MIK."

"UTS," said Yūhi with a smile.

Yūhi and Usagi were quick to close the balcony door right before Yūhi could be spotted by the MIK committee. Yūhi looked around Usagi's bedroom to see that she got rid of the pink walls. Instead, he spotted a silver-blue color where her pink walls were. He also saw her duel monster cards spread out on a dark blue comforter, the silver stars and moons making a pretty contrast. Usagi, herself, was dressed in comfy red and yellow pajamas that reminded him of his hair of all things. Yūhi shook his head about that train of thought before sitting down on the bed, absentmindedly picking Usagi's card up. "La Moon," read Yūhi out loud, "Huh. When did you get this card?"

"A while ago," said Usagi, "Have to redo most of my cards in my Moon deck."

"Hontō," questioned Yūhi.

"Mhm," nodded Usagi, "Yet, I don't think you wanted to talk to me about my deck and what new cards I have."

Yūhi winced inwardly. He knew that Usagi could see right through him, but did she really have to point it out so blatantly? Yūhi placed a hand on his deck case as he thought about how to talk to Usagi. On the one hand, she will know how he will feel. On the other hand, Yūhi was kind of scared that she would laugh at him. Usagi, on her part, looked at Yūhi and knew that he needed someone to listen to him, no laughing at all. She bit her lip before kneeling in front of him, placing a gentle hand on his. Yūhi jumped a bit on the bed before his red eyes clashed with Usagi's blue eyes. He also gulped inwardly on how Usagi looked when she was looking upward. 'My best friend really is pretty,' thought Yūhi unconsciously.

"Are you ready to tell me," questioned Usagi.

"Well," started Yūhi hesitantly, "I think that I want to give up dueling."

"Eh," questioned Usagi.

"I…," said Yūhi who was now tapping Usagi's fingers with his nervously, "I saw a duel between Aitsu and the commander of MIK. It looked like Aitsu was winning until a new type of summons, a Maximum Summon, took place. Phaser actually defeated Aitsu with that type of summons and…"

"You became scared," said Usagi knowingly.

"I… I couldn't do ANYTHING to help Aitsu," confessed Yūhi, "The worst thing about this is that Phaser turned Aitsu into a duel monster card!"

Usagi gasped in surprise by what Yūhi witnessed. To change someone into another thing was just… cruel. Yūhi could tell that Usagi was horrified by her gasp as he clenched a hand that wasn't holding onto Usagi's into a fist. He was frustrated with himself. He promised Yudias that he would be there for him, yet Yudias sent him, along with Mutsuba Town, back to Earth. He couldn't do anything to help then and he couldn't do anything to help now. He was, however, surprised by Usagi as she jumped at him, both of them falling on top of Usagi's bed. Usagi didn't even care that maybe they shouldn't have done that, for her cards were still on the bed. "Usa-chan," questioned Yūhi.

"Onegai," said Usagi, "Don't feel bad about what had happened. You were just one person and being hunted by a lot of people, anyone would be scared. Demo, you are NOT alone, Yūhi-kun. I am here for you… always."

"Arigatō, Usa-chan," said Yūhi who wrapped an arm around Usagi's waist.

"Demo," said Usagi, "Are you sure you want to quit dueling? I am sure that with more practice, you'll be ready to face Phaser and MIK."

"You going to be there with me," questioned Yūhi.

"Just try to keep me away," said Usagi.

Yūhi smiled at Usagi from his position. With Usagi's bedroom light above them, it looked like Usagi had a halo above her head… like an angel. Did that mean Usagi is his angel? Shaking his head mentally at thinking about that about his best friend, Yūhi gently sat up with Usagi sliding to his side. He knew that coming to Usagi's was the best thing he could have done, especially witnessing Aitsu's lost. Usagi, on her part, gasped inwardly. She remembered about something that she wanted to give to Yūhi. Hopefully, these cards will help him. Yūhi blinked as Usagi, with a speed of… well… a rabbit, jumped off of her bed and grabbed something from within her desk. "I forgot about these," said Usagi.

"Usa-chan," questioned Yūhi.

"Well, with everything you were going through," said Usagi, "I… didn't want to come up to you and give you these, especially when you keep on running off with Yudias, Yuamu, and your new friends."

"Usa-chan," questioned Yūhi, "A-Are you scared that I'm going to forget about you?"

"Well, as I said," said Usagi, "You have new friends. I'm just your school friend who…"

"…Who is also a reincarnated alien," said Yūhi, "Don't worry, Usa-chan, you'll never stop being my friend even when I know that fact about you. You're stuck with me till the bitter end."

"Yūhi," said Usagi with a smile on her face.

Yūhi blinked as his thoughts went back to how pretty Usagi was, especially when she smiled. Yūhi, however, shook his head mentally right before Usagi pressed some cards into his hands. Yūhi looked down with his red eyes to see Cyber Dragon, Cyber End Dragon, the spell card Cyber Entry, and a random Cocosh, the Spellcaster of Happiness in his hands. He was so confused about the cards that Usagi giggled at his face. 'I knew that he could be cute in his own way,' thought Usagi unconsciously.

"Usa-chan," asked Yūhi, "Why are you putting these cards in my hands?"

"Well," said Usagi, "You were very fascinated with dragons. Also, your deck is mostly made up of machine types. I thought that… well… you could find a place for those dragons in your deck?"

"And the spellcaster," questioned Yūhi.

"You have to remember me whenever you duel, ne," teased Usagi, thought her eyes held a different story.

"Arigatō, Usa-chan," said Yūhi, "I'll treasure them always."

"I'm glad," said Usagi.

Since it was very late, Usagi urged Yūhi to just stay with her to rest. He was going to need his energy to dodge MIK, Usagi reasoned. Yūhi nodded his head as he yawned out his tiredness. He did remember that he helped Usagi put away her deck before the both of them collapsed onto Usagi's bed, just like when they were kids. Facing and curling towards Usagi, Yūhi smiled at Usagi. "Oyasumi (Good night), Usa-chan," said Yūhi.

"Oyasumi," said Usagi back.

- 7th Grader Yūhi: Yudias Comes Back After Two Years –

A thirteen-year-old Yūhi was walking away from his family and Yudias who was back from his home world. He was pretending to not care about MIK and what they were doing to Mutsuba Town. Now wearing clothes that consists of a blue-black jacket that was unbuttoned with the sleeves rolled up over a white shirt and a brown strap, blue-black pants with a black, heavy-buckled belt, charcoal socks, and black loafers, Yūhi was walking towards a grassy hill that had a flowing river bank. He was really looking forward to seeing Usagi. After growing up more within the two years they were dueling each other and re-strategizing Yūhi's deck, Yūhi and Usagi grew closer and became a couple. Even Yuamu didn't know that her twin was now dating his childhood and best friend. Yūhi glanced around as he made sure his so-called Earthdamar, Damamū, wasn't following him like he always does. "Safe," said Yūhi who sat on the grass and leaned his back against said grass.

"Safe," questioned a familiar voice, "From what?"

"Usa-chan," said Yūhi with a smile, "I'm safe from my Earthdamar."

"Damamū," questioned Usagi, "Demo, he's a sweetheart."

"He has too much energy," said Yūhi.

"He gets that energy from you," said an amused Usagi.

Yūhi grunted before his red eyes turned to stare at Usagi. Gone with her cutesy clothes, Usagi now sported a pair of jeans and a small tee that when she stretched, it showed off her toned stomach a bit. Yūhi also noticed that her baby fat was slowly going away from her body as she grew up. Usagi, on her part, smiled down at Yūhi before getting comfortable next to her boyfriend of three months. That's right… three months. Yūhi took his time to figure out his feelings for Usagi, and vice versa. But, that was alright because they were only thirteen-year-old and now exploring teen love with one another. "So," said Usagi, "I heard a certain Velgearian came back."

"Yeah," said Yūhi, "I don't know how to feel about that."

"Demo," said Usagi, "You ARE happy he is back with UTS, ne?"

"Ah," nodded Yūhi after he sat up, pulling Usagi to his side.

"Are you just worried that he'll be captured by Phaser and MIK," questioned Usagi.

"Ah," nodded Yūhi once more, "I know he's capable, demo he's still kind of…"

"… Naïve," questioned Usagi, "Don't be. He is still learning, just like with every Duelist."

As Yūhi and Usagi were talking to one another, they never noticed that Yūhi was indeed followed by certain people. He really worried everyone as he decided to dress like a so-called bad boyish punk. So, when Yudias came back and Yūhi walked away from everything that was dueling, Yudias was very worried that he told Yuamu that he was going to follow Yūhi to where he was going. Yuamu nodded her head and said she'll accompany him, the rest of UTS and Damamū following silently. They were met up with friends that they made along the way of their first adventure and also live in the Alien Residential Area: Kirishima Rovian, Kirishima London, Gōha Yuuna, Ōmori Menjaburō, the Jersey brothers, George, Jouge, and Ofuruno, Mutsuba Asaka, Guratto Ishida, the alien dog, Bochi, and Bochi's owner, Atachi Manya. Yuamu and Yudias were surprised to see such a big crowd, but it couldn't be helped. They all were worried for their friend, Yūhi. However, as they finally stopped following Yūhi, they were surprised that he wasn't alone as they thought he was. They were even more surprised when Yūhi leaned down and kissed the mysterious girl on the lips. "N-Nani," questioned a surprised UTS member, Arisugawa Dabingo.

"H-He's kissing someone who we haven't met yet," questioned Yuamu and Yūhi's caretaker, Tazaki Galixon, in surprise.

"Is this girl the reason Yūhi doesn't even duel," questioned a UTS member, Makiko Maki.

"Love can do strange things to you," said another UTS member, Omaneo Mondai, "I heard that anything is possible when you are in love."

"He could have told me," said another UTS member, Yagi Torey, "I could have whipped him a picnic for him and his girl."

Every UTS member was now discussing what they witnessed while Yūhi's friends and his twin, Yuamu, were talking about who the girl was. They have never seen another Earthling, and if said Earthling DID sneak into the Alien Residential Area just to see Yūhi, then was she a spy for MIK or someone who will be in trouble with MIK? Yudias looked ready to storm towards Yūhi and confront this mysterious girl, but he was halted with Yuamu's hand. Yudias looked at Yuamu to complain, but the complaint fell off his lips as he saw Yuamu watching Yūhi and the mysterious girl's actions. "Yuamu," said Yudias.

"We can't really storm up towards them without Yūhi panicking," said Yuamu.

"Why not," questioned a soured Manya, "He ditched dueling AND this problem just to be with some girl!"

"Mhm," nodded Asaka and Yuuna together.

"I don't think Yūhi would do something like that," said Yuamu, "Besides, Damamū and I always spied on Yūhi at nights and saw he was practicing his dueling secretly."

"Then, why not just tell us," questioned London.

Yuamu was going to answer but a gasp from Rovian made her turn back to what was going on. Yuamu, along with UTS and friends, turned to see Yūhi accepting a glowing golden something that melted into his own body. That actually prompted everyone to rush towards Yūhi and Usagi. Yūhi, on his part, was surprised that Usagi asked him to take the Golden Crystal into himself for safe keeping. The Golden Crystal, according to Usagi, could not melt into Usagi like her other Senshi protectors, but will go into someone worthy of Usagi's love. "Are you sure you want me to have the Golden Crystal," questioned Yūhi.

"I'm sure," said Usagi, eyes full of love, "We haven't dated long, but I want this relationship to last."

"Same here, Usa-chan," said Yūhi, "I'll try my best not to push you away from everything, demo I don't want you to fight Phaser. I don't want you to turn into a card."

"And," said Usagi, "That's a risk I'll take. I want to fight alongside you, not just be a damsel in distress. I am not that kind of hime."

"I remember," chuckled Yūhi, "Alright. I'll accept the Golden Crystal into my body. It's better than Damamū as the Earthdamar in my body. I didn't know he was inside until Yuamu and my kappa friend pulled him out."

Just as Yūhi accepted the crystal, said crystal appeared floating before Yūhi and Usagi's eyes. Usagi smiled one more sad smile at the crystal before it melded into Yūhi's body, Yūhi glowing golden briefly before leaving. Yūhi looked at his body and didn't feel any different too. So, he jumped in surprise after placing an arm around Usagi's shoulders to lead her into the Alien Residential Area for a date somewhere. There, in front of the couple, stood Yūhi's family and friends all looking worried at Yūhi. "Yuamu," questioned Yūhi nervously, "W-What are you doing here?"

"Yudias and everyone were very worried about you, Yūhi," said Yuamu, "So, we followed you. To our surprise, you were meeting with a girl."

"Ah," nodded Yūhi with a smile, "I guess I can introduce you all?"

"You better, aniki (boss)," said George Jersey, his brothers nodded alongside him in agreement.

"Well, for three months, I have been dating this girl," said Yūhi, his eyes turning towards Usagi, "Tsuki Usagi."

"Usagi," questioned Manya, "That girl you always hung out with when we were all younger?"

"Un," nodded the couple.

"It's only been three months," said Yūhi, "We're still exploring this relationship, so to speak."

"And," said Asaka, "How do we know that this Earthling isn't in MIK's spy network?"

Usagi and Yūhi blinked at the accusation, but the couple knew that Usagi was going to be accused. Yūhi was very convincing when he wanted to be. He was just surprised that he got one up on his twin who always saw everything. Usagi, on her part, felt a bit offended as question after question was pushed at her. She knew that she was a stranger to most of Yūhi's friends, but did they have to accuse her of being evil? Pouting slightly, Usagi gave a tug at Yūhi's rat's tail hair that had a dark red tip at the end. Yūhi winced a bit at Usagi pulling at his hair, but his red eyes turned to her questioningly. Usagi then leaned up and whispered something within Yūhi's ear. Everyone stopped questioning the couple when they heard Yūhi voice a question of his own. "Are you sure," questioned Yūhi.

"UTS," nodded Usagi with a grin.

"I thought you had to keep it a secret," questioned Yūhi.

"They are your friends and family," said Usagi, "I'll put trust that they won't use me."

"Yeah," said Yūhi with a frown, "I know why you didn't reveal yourself when Zuwījou appeared."

"Zuwījou," questioned Yudias to himself.

"Demo," said Yūhi worriedly.

"Daijōbu," said Usagi, "Everything will be fine."

Yūhi sighed once more but knew that Usagi was stubborn just like him. At least, Yuamu will know why he was interested in aliens when they were little. Everyone watched the interaction between Usagi and Yūhi in confusion. They didn't know what Usagi was going to reveal, but they were ready. With their Rush Duel decks in their hands, they waited for Usagi to do something. It was then that they witnessed Usagi closing her eyes and glowing silver. It was very different from Yudias who had a beam of blue light to transform him into his alien form. Usagi's body became translucent before a white flowing gown with white shoulder pieces that disconnected from her dress appeared. The front of the dress had an intricately decorated bodice with gold hoops, the bust defined by a row of golden beads. Trailing at the back was a white gauzy bow with long fluttery ribbons. Lastly, Usagi had an upturn golden crescent moon on her forehead. Yūhi smiled dreamily at Usagi as she turned into her other form, her past life form. He could also tell how every male would fall for Usagi, but he was lucky that he was the one who captured her heart in THIS life time. "Mina (Everyone)," said Yūhi who gestured at Usagi who was now smiling serenely at everyone, including at Yūhi, "Meet my kanojo's past self… the alien hime from Earth's Moon… Serenity-hime!"

"E-E-EH?!"