Sister Hisae Yabe works at a company run by her younger sister, Wakatsuki Shiori, who treats Hisae harshly at work due to her mistakes, maintaining a strict boss-employee relationship. However, at home, the two reveal their armpit hair, thick body hair, and pubic hair, growing close through intimate, incestuous lesbian relations. Meanwhile, Shiori is also engaged in a physical relationship with another employee, Mai Miori. As a forbidden love triangle unfolds, intense lesbian sex erupts between the women, reaching a staggering 15 orgasms. This work fully captures the passion of taboo relationships and the irresistible allure of the female body.