Yotsuya

Yotsuya is one of Osamu and Yūma's classmates.

Appearance
Yotsuya is a teenage boy of average height. He has neck-length brown hair with long bangs framing the sides of his face. He also has black eyes. He is usually seen wearing his school's uniform, a dark blue blazer, and dark blue necktie with white stripes over a white polo and gray-blue pants.

Personality
Yotsuya is a calm and level-headed boy who doesn't talk much. He is annoyed by Miyoshi's obsession with Border.

Trivia

 * His Japanese voice actor, Ryōhei Arai, also voices Fumifumi Saotome.