Rei Kamishiro is one of the characters in Aikatsu!. He is the top designer of Futuring Girl.
Rei appears on Episode 40. He is the top designer of Futuring Girl, Aoi's favorite brand. He wanted to make a prefect dress but because of all the pressure he put onto himself, he never realized it was perfect the way it was. Rei locked himself in a shell until Aoi told him that it wasn't all about perfection. As thanks, he gave Aoi the premium cards, the Kaleido Mirror Coord.
Much like the Futuring Girl designs, Rei's hair is a very futuristic color, from purple to light blue. He has only been introduced for a short period of time, and is most commonly seen in a no-sleeve vest.
Rei is a perfectionist of sorts- he locked himself into a shell because he believed that his Rare dress wasn't perfect. He is very idealistic, always looking towards the future for dress designs.