Influenced by TV, mother Kiyoka decided to learn martial arts from her son. The son, worried about his mother, tried to discourage her interest in martial arts by using intense grappling techniques. As planned, the son succeeded in dampening his mother's enthusiasm, but unexpectedly found himself stirred by her sweaty, clinging form. He tried to pull away, but an unexpected accident caused his mother to end up on top of him. By the time she moved off, the son had reached his limit...
