Ittetsu has lost all hope of living after his wife passed away. The only thing I can think of while sleeping in my futon all day long is that my son's wife Waka's big butt resembles that of my dead wife. One day, ittetsu, who was injured due to his wife's clumsiness, feels indebted and reaches out to Waka's ass, who devotedly takes care of him. "Your butt is the vitality to live."
