Tsukahara is responsible for training new employees of the company, which is how he met and got to know Mirei, a young, beautiful girl who has just graduated. After a period of interaction, the two started dating. Mirei wants to go public about their relationship, but Tsukahara wants to keep it secret because he is afraid of being noticed by his superiors. Today, manager Takeda assigned Mirei to assist him on an upcoming business trip. Tsukahara always feels uneasy in his heart. And just as Tsukahara feared, the thing he least wanted happened. Manager Takeda had long noticed Mirei's beautiful body, and he wanted to take this opportunity to make her his. After finishing a negotiation with a partner, everyone went out to eat together. Wanting to enjoy herself with everyone, Mirei drank a little too much, and had to ask manager Takeda to take her back to her room. Even after bringing her back to her room, he still did not leave. When Mirei asked, he replied that the hotel only had one room available. And unable to take it any longer, he rushed in to invade Mirei's perfect body. Super technique, the ability to satisfy the most sensitive points of women, his mighty big cock makes Mirei instantly sink into extreme pleasure! He continued to fuck her all night and Mirei was completely conquered by the head of the department Takeda. She vowed to dedicate her whole body to him! When she returned, Mirei became cold to Tsukahara, because now, she just wanted to be with the head of the room, to be kissed by him, to be fucked by him, to be allowed to enjoy the ultimate feeling of pleasure by him...