The wife is preparing for childbirth and has returned to her parents' home. Since the husband is alone, he finds it inconvenient, so his sister-in-law, Miho, comes to help. The man gratefully accepts his sister-in-law's kindness, but... Miho's true purpose is his dick. Due to a strained marital relationship, Miho has been sexless and targets her brother-in-law to satisfy her sexual frustration. The seductions that Miho keeps throwing at him are so erotic and sensual that they easily shake the man's resolve not to betray his wife...
