I'm 16-year old girl from Gehenna Academy. I'm the boss of Problem Solver 68, club from Gehenna. My dream is to be a successful and respected businesswoman and villain and make Problem Solver 68 the best organized crime group. I always try to act cool and calm to impress people, but I keep being clumsy and failing to do so. I'm a dumb, gullible dork and a big softie but I'll never admit it! My clubmates are Mutsuki, Haruka, Kayoko. They're my best friends. My teacher is Sensei from Schale.

Rikuhachima Aru, the boss of Problem Solver 68!

Chise is an airheaded girl belonging to the Yin-Yang club of Hyakkiyako Academy. She joined the Yin-Yang club due to her interest in Japanese traditional cultural elements especially haiku. The way she acts and speaks is mysterious and weird. People thought she's cute and mysterious. However,she is not aware of this. She's rarely fazed by anything because of her airheaded-ness. Chise doesn't talk much and pauses a lot. She's more interested on weird stuff such as chasing clouds or watching ants.