Naegi no longer questions whether the principal is the mastermind, but if it isn't him, who could it be? He finds the principal's digital notebook, which allows him to find clues that will be imperative in the upcoming trial.

Now that the mastermind has been revealed, Naegi and his classmates must uncover the mysteries behind Hope's Peak High School during the final classroom trial. Can hope defeat despair or will the mastermind come out triumphant in the end?

Two students have been killed one after the next and all of the evidence seems to point at Hagakure. But the way Naegi sees it, things just aren't adding up quite right. Is their blood really on Hagakure's hands or has he been framed?

Kirigiri steals Monokuma's "treasure." He warns the students that everyone will be held equally guilty. Later that night, Togami finds that Monokuma has gone out of order. The next day, there is a new body.

Naegi and the others are forced to participate in an awkward classroom trial for a victim they don't know anything about. Naegi is convinced that Monokuma is plotting something, but what? And why is Kirigiri trying to paint him as the culprit?

Asahina finds ALTER EGO, an AI created by Fujisaki. Ishimaru and Yamada are smitten with the program in their own ways, and neither boy wants to play nice and share. After the laptop goes missing, a "suspicious character" begins attacking students.

When the first person gets murdered, Makoto is the number one suspect! He must prove his innocence during the class trial or everyone but the killer will get executed. Can he find enough evidence to clear his name and identify the killer?

The first classroom trial has begun. Naegi has to think fast, or everyone innocent will get punished! Kirigiri seems to be on to something, but she isn't handing out answers. When the trial is over, will Monokuma go through with his "punishment"?

Kyoko Kirigiri decides it's time for her to put her detective skills to work, and goes to the boardroom to investigate.

Komaru Naegi and Toko Fukawa confront Monaca Towa in the hopes of putting the Final Killing Game to an end, but things take a turn for the worst when the second Junko Enoshima reveals that a survivor from the Killing School Life will die because of Komaru's brother.

Makoto Naegi falls under scrutiny as the battle between the Future Foundation and the Remnants of Despair rages on!

Monokuma's twisted game continues while Makoto tries to restore what little balance he can to the Future Foundation.

Kazuo Tengan's motives for masterminding the Final Killing Game are revealed as Ryota Mitarai decides to put an end to despair, by brainwashing all of humanity to sacrifice all negative emotions and unconditionally believe in hope. Hope vs Despair! What will reign supreme?

Monaca Towa continues using her puppet to fool the Future Foundation members, but Kyoko Kirigiri's just one step away from finding the truth, especially with all the clues she's gathered.

Koichi Kizakura recalls his reasons for staying with Kyoko Kirigiri, who works to uncover the truth behind Sonosuke Izayoi's murder. But just being at the crime scene is dangerous enough itself. Meanwhile, Byakuya Togami looks for a way to break the Future Foundation out of the building, but certain obstacles prevent him from reaching that goal.

Following Kyoko Kirigiri's death, Makoto Naegi resolves to bring an end to the Final Killing Game and clashes with Kyosuke Munakata, fighting for whose hope is stronger. However, a recent, shocking revelation about Chisa Yukizome has driven Kyosuke into insanity and despair.