On a business trip, soap girl Mai Aizawa is summoned by a panty fetishist who makes her wear his preferred panties. Over the panties, she masturbates using a vibrator, her allure heightened by the act. Moaning "Feels so good~" as the vibrating toy writhes inside her, she finally achieves satisfaction when it's inserted, her expression one of pure pleasure. The entire scene fully showcases her erotic charm and appeal.