Different dimensions called "Magic City" appeared all over Japan. Since only women can get special abilities from the "peach" in the Magic City, the "Magic Defense Team" was formed by female soldiers. One day, a male high school student named Wakura Yuuki, who lived a depressed life, accidentally broke into the entrance of the sudden Magic City. There, he met the beautiful captain of the seventh group of the "Magic Defense Team" - Yuzen Kyoka, and she declared to Yuuki: "I want you to be my slave."