The son's wife, Reiko, and granddaughter, Maina, take care of Tokuji. However, the mother-daughter caregiving gradually becomes extreme, eventually leading them to fight over the penis and even perform sexual caregiving! Their lewd acts are witnessed by the neighborhood old man, Yamada! Using their infidelity as leverage, Yamada rapes and captures the mother and daughter. But at that moment, Tokuji's penis stands tall and proud, ready to save them!
