Mathematics are erased from Japan school curriculum. Then an organization appear to be the one to oppose that idea, called Black Triangle, threats the government that the organization will take over the country. To fight them, police forms a team, and among them there is a junior high school girl.

Details

Genres

Staff

• Hajime Kirino — Character Design
• Keisuke Motoe — Story & Art
• Aito Aoyagi — Original Story