The world's most powerful esper is a well-renowned Canadian doctor, Jasper Saturday on his retirement as an esper. When he enrolls in a school in Japan, Minamoto Highschool, he wanted his life to change forever. A pair of sexy girls, Shizuko and Kyouko are step sisters who are students of Minamoto Highschool, the two girls have a secret that they kept for long. Shizuko is a psychic beast and Kyouko is a psychic wielder.