Ootomo Kyouko

Ishigami's classmate from middle school. She interacted cheerfully with Ishigami who was isolated in the class. She couldn't pass the academic test for high school and thus didn't advance. During middle school, she was dating Ogino, but they broke up after a violent incident involving Ishigami and Ogino. Not knowing the real situation, she blamed Ishigami when she visited the high school sports festival, only to be rebuffed with a "shut up, idiot" from Ishigami himself.