A high school boy Yukinari has been bullied by girls all his life and developed a fear of women. Just being near them makes him break out in hives! One day, he is transported to a world of females only. He meets a beautiful, mysterious girl named Miharu who inexplicably doesnt affect him. He somehow manages to return to his own world with Miharu, but shortly after other girls follow them and his life turns into a big mess!