Kurimiya is working part-time at a café. The manager here is a middle-aged man who is still single. From their very first meeting, Kurimiya was attracted by the manager's kindness, seriousness, and dedication to work. Normally, Kurimiya is very shy and quiet, but when she's alone with the manager, she becomes incredibly lewd. She actively shows off her large breasts and her underwear in front of the manager. She initiates flirtation right at the store. Having not had sex for a long time, being approached by a young and beautiful girl like Kurimiya makes the manager lose all rationality and enter into this highly imbalanced age-gap relationship...