After losing his wife, Yuzo moves in with his son's family. While his son is at work, Yuzo is left alone with his daughter-in-law, Yoshie. Drawn to Yoshie's kindness and her massive breasts that seem ready to burst during cleaning or yoga practice, Yuzo finds himself increasingly infatuated. Eventually, Yuzo commits the taboo of 'taking his son's wife' and begins to assault her large breasts…
