Age: 15 (Season 1), 17 (Season 2)
Birthday: April 11
Zodiac sign: Aries
Height: 175 cm
Weight: 60 kg
Blood type: O
Instrument: Guitar
Hobbies: Soccer, all sports in general
From: Tokyo

Kind, affable, and honest, Otoya's smile shines like the sun and brightens the lives of everyone around him. He has loved singing since he was a child and always aspired to become an idol. He is energetic and active, and often acts on impulse. He is a natural athlete, making him an especially skilled dancer.

Haruka's classmate in A Class. He shares a room with Tokiya from Class S.