Reo Mouri  

Reo is a graduate from the Academy who gained international fame after his debut. He first appeared in Episode 13 and came to Alice Academy for the Opening Ceremony of the Alice Festival. During the performance, he pretended to be injured and kidnapped Natsume while she was recovering in the hospital. Despite failing initially, Reo later manipulated Ruka (in episode 23) to carry out his plans. His control device is an earing that he wears on his left ear. Narumi was Reo's senpai at the Academy, and although Reo initially thought that Narumi would be the one to retaliate against the institution, he now believes that Narumi has betrayed him.