Kyoko has reached her eighth year of marriage. She is a female president running her own apparel brand, while her husband manages several sports gyms. Due to both being busy, their lives are constantly out of sync. They now live separately and only see each other two or three times a month, to the point where she wonders if there's any meaning in being married. Kyoko finds solace in her golden retriever, but her loneliness deepens with each passing day. After witnessing neighboring couples walking their dogs together, a desire for infidelity begins to sprout in Kyoko's heart. She then starts seeking encounters with men.