Takes place before the events of Trigger Happy Havoc. A new teacher treats the Danganronpa 2 students. Chisa Yukizome is substitute teacher before she becomes an actual teacher at Hope's Peak Academy. In the first episode, most of the class is missing so the class that is present in the classroom and Chisa go on a heist to find all the students. As the show progresses the more the episode's get darker. On the final few episodes, Junko Enoshima brainwashes Chisa Yukizome, gives Chiaki Nanami false hope and death, and brainwashes all the students into committing despair-like actions.