A couple who have known each other since childhood, Rei and Tetsuhiro. After five years of marriage, they still showed unwavering affection for each other, but this summer, Tetsuhiro's infidelity was exposed. With childbearing also not going well, Rei hit rock bottom. Just then, Tetsuhiro's father, Dan'go, decided to stay at their home on a business trip to Tokyo. Since they were in the hometown, Dan'go had always been kind to her, and Rei found herself drawn to him again. Before she knew it, Rei realized that she was subtly seducing Dan'go, so she made up her mind and headed to his house…
