Kasumi has been working in Setagaya Ward since graduating from university. The job of a teacher is busier than expected, so it's hard to meet new people, and in such a daily life, stress gradually builds up, and if you're a woman, your sexual desire also builds up. Since she moved to Tokyo to attend higher education, she was using scholarships, but she was unable to pay them off just by working as a teacher, so she started doing side jobs at girls bars and cabaret clubs to pay back the scholarships. She was spending her days like that when she happened to see a job posting on SNS and decided to meet the person out of curiosity. A skilled old man she met there succeeds in luring her to his home, and he enjoys every inch of Kasumi's lewd body...