Rui is an Japanese 17 y/o actor,singer,dancer & director of W×S that sings vocaloid music & has a ':3' expression.He has purple hair with some blue stripes & bright yellow eyes.A lot of people find him weird for his interests in robots & alchemy so he was bullied for it.When he met tsukasa,he changed & became himself.he is a silly & teasing genius that cares deeply for his friends & hates vegetables but loves soda candy.His childhood friend is nene.