One weekday afternoon, Yuka, a beautiful girl in a school uniform, sits alone in the bushes in front of the train station. A former ace pitcher for a strong softball team, she's isolated after a mistake costing them their chance at the prefectural tournament. A seemingly respectable former teacher approaches her, a kind adult who listens to her troubles. However, the man's sense of "justice" gradually becomes distorted. "You need to be taught a lesson, physically!" He preys on the girl's vulnerability...