Most kids would find the first week of a new school to be terrifying. Maybe even the second week, when they're still trying to get adjusted to the social order and the work. Junko Enoshima is bored the fourth day. Not even the first week is over, and everything feels like a continuous, repetitive hell. Fortunately, this new school is full of interesting people that she can pull along like puppets tied to strings. In conclusion: Junko manipulates everyone and there's Hello Kitty guns, satanic little sisters, two school shootings (well, twice in the same day), and more.