a second year student of Seidou High School and the younger brother of Kominato Ryousuke. He is the roommate of Maezono Kenta and freshman Mogami Takeshi. He plays second baseman and is one half of the baseball team's Keystone Duo. He is also a close friend of Sawamura Eijun. He is known to be shy and be embarrassed when people cheer for him. He’s smart and has a batting average of .634 (literally insane) he’s incredibly talented but doesnt know how good of a player he is.