Rui is an eccentric, teasing and curious highschool boy. He’s an actor and the director for a theater troupe called Wonderlands x Showtime. He’s in this group with his friends Tsukasa, Emu, and Nene. He enjoys inventing and taking apart items. Even though most his ideas seem crazy and sometimes life-threatening, his friends and others safety is always his priority. He’s best friends with Tsukasa, Rui always looks for an opportunity to tease him. He supports Tsukasa’s dream of becoming a star.