Jiro returns to his hometown in the summer. There, he learns that his older brother and his wife are undergoing fertility treatment, and he feels an awkward atmosphere. That night, Jiro, who happens to take a peek at his older brother and his wife's activities, is fascinated by his sister-in-law, Kana's usual quiet demeanor. His wife begs Jiro, who is in the stable pregnancy period, to have a vaginal cum shot if she really wants to get pregnant. Unable to resist the temptation of her sister-in-law, who steals her family's eyes and presses her to ejaculate in sweat, Jiro finally shoots into her vagina.
