Akiho has invited Haruka to her home to introduce her to her parents. While Akiho leaves to fetch dinner supplies and her father Natsuo takes a walk to shake off his nervousness, Haruka arrives ahead of schedule and is thus welcomed by Akiho's mother, Fuyumi, alone. As she entertains him, Haruka discovers to his mounting disconcertion where Akiho's casual approach to sexual topics originates from, but with his modest and gentle manner wins her father's approval when he and Akiho return home...