While helping her respected senior move into his new home, pure office lady Miyu Aizawa gets trapped in a sweltering room due to a sudden accident. Amidst the rising heat and sweaty skin, a mishap leads to her senior discovering a large collection of sex toys she had hidden in a cardboard box. "You're so serious at work... hey, why don't you show me how to use this?" he teases. With no escape from the locked room, Miyu's secret kinks are exposed. Though she initially resists out of embarrassment, the intense stimulation of the toys and her senior's skillful caresses strip away her reason, leaving only raw instinct. In the oppressive heat, drenched in sweat, Miyu falls deeper until she's begging for a creampie. An extreme, immoral document of a locked-room encounter!
