Saint Devil

15 years have passed since the disappearance of the Son of Santa carrying the Tojo University Exploration Club. Teresa Oma and Yunk Oma, the two siblings born to Asako Oma, the only survivor, became a hot topic in the neighborhood for their beautiful appearance and the huge physique of their younger brother who was in contrast to their older sister. One day, on their way to school, the two are hit by the president's son driving around in a flashy foreign car, and are carried unconscious to an empty warehouse on the outskirts of town.