"Carter, you are Japanese," Gordon says.
"I... I'm Japanese?" Carter asks. You are amazed to see her blonde hair turn jet black and that she shrinks a bit.
"Yes, you are Japanese," Gordon repeats.
"I am Japanese," Carter says. She shrinks down a bit more, and her skin becomes paler, but nothing else changes. You are so confused about how Gordon is doing this, but conflicting memories are beginning to form that she was always Japanese.
"You are also a huge geek," Gordon says.
"I'm a huge geek," Carter agrees. You're not particularly surprised at her lack of resistance as Carter always liked video games and anime, though you'd never call her a geek before. Now her shirt is changing to have characters from an anime you don't recognize and your memories of her are beginning to be replaced.
"In fact, you are such a geek that you cosplay a lot," Gordon adds.
"I cosplay a lot," Carter agrees. You suppose it is a logical step up, but new memories begin to form in your head. You remember Carter teaching you how to apply better makeup (since cosplayers usually have quite expensive makeup) and how she'd always take you to conventions and the like.
"You're even cosplaying as Rem right now," Gordon states.
"I'm cosplaying as Rem right now," Carter agrees. Her hair changes to a light blue and her outfit becomes a maid outfit. At this point, you only remember her as being Carter the cosplayer. This does mean you are now a bit nerdier by association, but other than that, it hasn't really impacted your life.
"Oh, and your name is Rei and no one remembers differently," Gordon adds as an afterthought.
"My name is Rei," Rei agrees. Of course her name is Rei, what else would it be.