Okute na Baito-kun to Zero Kyori Tenchou

Ichinose-kun works part-time at a bookstore that also sells adult goods. He is constantly overwhelmed by customers who confidently buy products catering to unusual sexual preferences, and he worries about his lack of self-confidence.

One evening, he ends up drinking at the home of his female boss, who has always been friendly with him. As he confides his worries to her, the boss starts acting shy and hands him a sex toy and adult video that a customer had just bought. She becomes increasingly pushy, and when Ichinose-kun unexpectedly gets an erection, she decides to try out the toy on him. A late-night lesson begins, aiming to give him the confidence to be a man.