Maezawa Yumi is a married woman whose heart and body remain unfulfilled by her husband's unsatisfying sex life, pushing her daily routine of self-pleasure to its limit. Deciding to respond during a work break, she stands out with her youthful, refined appearance and elegant charm—her thick pubic hair further enhancing her allure. Even on what seems to be a dangerous day, she can't resist penetration without protection. In the kitchen bathed in afternoon light, the sight of her receiving another man's semen inside her vagina exudes a strangely poignant beauty. Holding close the promise of being thoroughly pleasured late into the night, she steps forward into a new experience.