Hiiragi Seiichi has spent his whole school life as a target, overweight, unpopular, and constantly bullied, until a voice claiming to be a god announces over the school PA that everyone is about to be pulled into another world. Seiichi alone lands somewhere else entirely, separated from his classmates and left to fend for himself in an unfamiliar forest. The first thing he eats there is the Fruit of Evolution, and it starts rewriting what he's capable of almost immediately.