In this work, where Minoru Kunizawa took a megaphone, the battle between Kaori Ono, a witch girl who does not like her personality, and Saeko Hikawa, an alien who came to exploit human sperm, is set in a tower apartment. be painted. Resident men who are gradually brainwashed when Saeko starts an aerobics class at a condominium meeting place. Meanwhile, Tadashi Nonomura, who has secretly saved the crisis with magical power since Kaori was in elementary school, is approaching the devil's hand.