Ryoko Otonashi, a student who, as a result of "The Tragedy", has anterograde amnesia (the inability to form new memories) and has short-term memory loss. Overseen by the school's Ultimate Neurologist and her childhood sweetheart Yasuke Matsuda, Ryoko becomes embroiled in a vast conspiracy within Hope's Peak Academy, involving the mysterious Izuru Kamukura and "Despair Sisters" Junko Enoshima and Mukuro Ikusaba, as "The Parade" protests arise outside.
3 parts