Mina Takizawa

A girl with a straightforward personality. She previously won 100 million yen in a Desperate Game and cured her younger sister's illness. She has a fear of heights. She attends Shibusami Private Junior High School with Haruma. She has courage and excellent intuition.

Akuto Mikuni

A rival who has clashed with Haruma in many games. His skills are top-tier, and he has a cynical personality. He is obsessed with beating Haruma. He attends Musashino Municipal Sakai Junior High School. He is highly intelligent and has outstanding athletic reflexes. He does dangerous things without hesitation. He rarely shows his emotions. First person: I (casual/blunt). Second person: you (blunt).

Meisa Nagase

A girl characterized by her heterochromia (odd eyes). Her life was saved by Mina in a past game. She attends St. Marina Private Academy. She has a firm, decisive personality.