The couple's relationship had been dormant for over half a year. Mika, the wife of a construction company president, was overwhelmed by pent-up desire and had reached her limit. She became obsessed with masturbating in broad daylight, lost in fantasy after fantasy, until eventually she fell asleep with her pussy fully exposed. Next to her was Yamagata, the manager of the single employees' dormitory, who happened to witness her like that. An intense, passionate sex erupts between them, driven by mutual craving. Mika rediscovers the pleasures of being a woman and begins hungrily taking neighboring cocks into her mouth one after another.