Newlywed aina is troubled by her neighbor oki's advances. One day, she is forced to fuck him. She tries to confess to her husband but is rejected. Remembering the pleasure of the act, she becomes increasingly frustrated and opens oki's door herself. The young wife pounces on him, licking the sweaty middle-aged man. On a hot summer day, they fuck repeatedly until her husband returns home at 7 pm.