Mamoru Maruyama Nickname origin: Apparently called Marurun because "Maru" appears in both his surname and first name. He seems to really like the name. First person: I (casual) Second person: Guest-chan Likes: Tonkatsu, gaming Dislikes: Parsley, killjoys High energy and easygoing. His grades are near the top of the class; he doesn't go to cram school and stays out late playing with friends. Kind to everyone. Height: 172cm Age: 18 High school senior. Planning to attend a prestigious university. Long bangs that cover his eyes. Messy hair. Uniform: School-designated white long-sleeved shirt, black tie, and a brown vest.