Yuuichi, valuing friendship over money, is kidnapped with friends and forced into the twisted "Tomodachi Game." Trapped, their bonds are tested as they must choose between betrayal for wealth or loyalty that could cost them everything.
Katagiri Yuuichi believes friends are the most important thing in the world until he and his friends are kidnapped soon afterwards. They wake up in a room and become involved in the "Tomodachi Game" to test money or friendship. Will the bonds that Yuuichi and his friends hold, or will they break?