RWBY X Male Reader but it's an Isekai harem book

Chapter 18: Kill The Dance

After explaining to everyone that I'm now one-sixth Super Class Danger Beast and answering the questions that I could, I went to sleep, meeting someone else in that grey void.

"Who the hell are you?" I ask.

"You know who I am... Markothy Oath..." shit, he knows my full first name.

"Wait... are you...?" the guy turns around, revealing my current face, minus the red eye.

"Tatsumi, at your service," he bows and gives me a smirk unlike any I've ever given.

"I thought I inhabited your body... alone," he laughs at this.

"Well, you did, until recently," Tatsumi said.

"The Tatsumi Program brought you out," he looked surprised.

"You caught on quick, man. Maybe I should just leave it to you," he laughed.

"Can we uh, skip all this and get right into why you brought me here?" he lost the smile and the carefree tone.

"I want my body back," the audacity.

"No. I know that technically the body is yours, but you're not even the real you. You're just a program with the twisted soul of a baby aged up and given an entitled personality," Tatsumi looked shocked at my knowledge of his creation. "Yeah, I know, 'how'd you know?' and all that jazz. When Oz tried to activate your program and you tried to take over, I felt the emotions of the real you being overshadowed by this... persona."

"You really are something," he laughed. "Well, I'll leave you alone for now, but know this, when you're at your lowest, I'll be there to take control for you."

Narrator.

After Y/N awoke, he did as he did every morning and put on his sweater, sighing in ecstasy at the tight feeling of it. "Just like one of mum's hugs."

He did the rest of his morning routine before opening his door to Weiss.

"'Sup Weisscream?" Y/N asks coolly before Weiss slaps him and then hugs him.

"You dolt, you didn't have to do that for me," Weiss says as she buries her head into Y/N shoulder. "Thank you, though."

"I am very confused right now," Y/N hugs Weiss back. "Coulda swore we hated each other, Schnee."

"What gave you that idea?" Weiss asks with an innocent smile.

"I mean, before the Neptune stuff... I'm almost certain we hated each other," Y/N clarified.

"Don't worry about all that, worry about saving a dance for me tonight," Weiss lets go of Y/N, winking at him as she leaves.

"Fuck was all that?" Incursio asks when Y/N picks him up.

"I forget that you can see now," Y/N says before heading into the bathroom. "I have no idea either, mate."

Later.

Y/N is sitting on his bed in his team dorm, with Tatsumi on his lap, one of the two asleep, the other meditating.

"Both of them look dead," Lubbock comments.

Tatsumi then snores loudly.

"Nevermind," Lubbock sighs.

"What's he doing anyway?" Mine asks.

"Trying to take in the ambient Aura to expand his reserves," Lubbock answers. "Says he got tired of running out so much during training."

"He blacks out when that happens, right?" Mine asks.