Raika's life in his small seaside town is peaceful: school days with his old friend Ibuki and his maid Yuri. Then it turns out his father is actually a magical girl, and things get stranger when a group of magical girls arrives at his school searching for a treasure stone called the Mana Prism. Raika has no interest in wearing a girl's costume, but he is forced to become a magical girl anyway. Longing for his old quiet days, he takes up the fight against the invading magical girls to protect his school. The comedy OVA was made as an exclusive bonus for the PAJAMAS SOFT 10th anniversary game project, bundled with the game's professional package. It is silly and suggestive, and it doesn't take itself seriously.