A story developed by Katou, a male high school student who wishes to live a mediocre life, with a "capability hero correction" in his gratitude for helping a bad fairy. Katou, who helped a fairy attacked by a cat, changed the face the next day and started to be cheated by girls, and instead of studying poorly, he was able to play sports. The fairy who appeared in front of the confused Katou explains that his ability is “changing the appearance, ability, and environment as the main character of the story”, but that is not only good.