Yuichi Katakiri is a high school student who values his friendships more than anything, and together with his close friends Shiho Sawaragi, Tenchi Mikasa, Makoto Shibe, and Yutori Kokorogi, they enjoy high school life to its fullest.

However, following the events of a certain incident, the five of them get dragged into a debt repayment game. The only way to beat the so-called “Friendship Game” is to never doubt your friends. Since Yuichi and his friends are such a tight-knit group, the game should be a cinch…but is it?

The anime adaptation of the massively popular comic that has over 3.7 million copies in circulation is here at last! Will friends stay faithful or will they betray each other? The extreme psychological game that exposes the true nature of people begins!