At Tenbin Elementary, there is only one way to settle a dispute--in a court of law! All quarrels bypass the teachers and are settled by some of the best lawyers in the country...who also happen to be elementary school students.

Tento once again finds himself in a tight spot when he's accused of trying to murder the school's Madonna, Reiko Shiratori, and locking her unconscious body in a shed. Can Abaku ronpa his friend to freedom? Meanwhile, the Red Ogre sends out a warning to Abaku, Sarutobi and Yui: discover his identity before graduation or he will murder all of their classmates again! Can Abaku solve this final mystery in time?