Chiaki, a college senior who usually earns pocket money at Ken○ky, applied for a slightly more adult part-time job to save up for her future as a working adult. Her first time having sex with an unfamiliar older man is marked by nervous tension and visible hesitation. Gradually relaxing, the scene highlights her slowly accommodating the man's advances. Though reserved, her alluring moans enhance her charm. Later, during a work break, she performs a blowjob while flashing her bra, and proceeds to have sex while still in her uniform. A series of thrilling, tense encounters follow. Chiaki's transformation into a more sexually eager girl, along with her expressions of pleasure and tears, captivates viewers throughout this unfolding story.