Shirota has just joined the company, and his superior Yuko, who is a famous strict director with subordinates, often criticizes him for making mistakes as a new recruit. During a business trip, Yuko decides to take Shirota along to learn. Throughout the trip, Yuko notices Shirota's cute and shy demeanor, enjoying his hesitant expression when he touches her hand and insists on pouring her a drink. Upon arriving at the hotel that Shirota had booked in advance, they realize there is only one room available. Shirota offers to sleep elsewhere, but Yuko allows him to stay in the same room. Feeling a bit tired, she asks him to give her a massage. While massaging her, Shirota touches Yuko's soft, smooth, and beautiful body, captivated by her large breasts that he can't take his eyes off. As a young man, he cannot resist this deadly charm! He begins to caress and inhale the scent of Yuko's body, undresses her, and desires to make love with her. Yuko initially considers refusing but ultimately gives in due to Shirota being inexperienced. She allows him to make love to her once. The pleasure Shirota brings makes Yuko forget everything. The two engage in passionate lovemaking all night until the next morning, even missing their flight to continue their uninterrupted intimacy...