Hidako Masamune is a high school student who suffers from prolonged bullying by his classmates. Having lost his patience, he decides to kill himself, but instead finds himself in another world with all his classmates.
When they got there, they found that they now possessed amazing abilities. But the protagonist was given Healer status, the weakest class of all. The king has decided to get rid of him by sending him far away, but Hidako looks forward to a sweet revenge on the king, the kingdom and all his classmates.