There is a tiny seaside village. Raika is content with his school life, which he shares with Ibuki, an old friend, and Yuri, his maid. His father, on the other hand, is a magical female (?). In addition, a group of magical girls visit his school in search of a valuable stone known as Mana Prism. Even though he does not wish to wear a girl's costume, he is also obliged to be a magical girl! "Come back, my quiet life!" His war against the magical girls to save his school begins now!