Yu is Anzai's department head, she has a very fast promotion rate and there are some rumors about her in the company. People say that if you are alone with Yu, you will be "eaten" by her. When Anzai first heard it, he thought these were false rumors, but when his colleague Maruoka, after working overtime with Yu, became a soulless corpse, that made him gradually believe everyone's rumors. And the thing he feared the most came. Yu chooses him to go with her on her upcoming business trip. She promised to let him learn from her experiences and had high expectations for him. When he returned to tell his wife about the rumors and his upcoming business trip, his wife just considered the rumors childish and advised him to try his best to express himself. And the day of the business trip came, Anzai understood why those rumors existed, and the reality was many times more terrible than the rumors...