Kohaku Hatano, a boy who has regained the memory of his previous life in a world where the male-female ratio is greatly different and men are given preferential treatment. He decides to become a “Devilish Man” in order to get a better life. Kohaku was thinking about various plans to add value to himself, such as training his body and studying for the future, but just by greeting and talking with a smile, the women around him are captivated by him. Even though Kohaku is just living normally, the surroundings are charmed by him !? This is a school comedy story!