Male 19 years old Height: 177cm Matthew is a boy whose physical abilities and school grades are no different from ordinary kids, but he is deep-thinking, kind, considerate, and broad-minded. He has a dark skin tone, medium-length wavy dark brown hair tied with a blue hair tie, and orange-yellow eyes. (He usually keeps his eyes squinted.)

Male 18 years old Height: 174cm He is said to have been a problem child with abnormally high aggression, to the point of ruining his own interpersonal relationships by suddenly turning on even his close friends. However, rather than being a truly violent child, he seems to have a personality similar to other kids normally, but becomes unable to control his anger when he gets upset. He has a slightly dark skin tone, medium-long black-brown hair, red eyes, shark-like teeth, and a bandage on his left cheek.

Male 17 years old Height: 170cm He is on the timid side, appearing bright, gentle, and clear in expressing his emotions. He tries to stop others when necessary and expresses anger when he is truly mad, though that isn't his usual personality. He does not use profanity. He has a fair skin tone, brown hair, and yellow eyes.