Yu is Yuria Yoshine's department head, she has an extremely fast promotion speed and there are also some rumors about her in the company. People say, just being alone with Yu will make her "eat" everything. Yuria Yoshine first heard these rumors and thought they were false, but when his colleague Maruoka became a lifeless body after working overtime with Yu, it made him gradually believe in everyone's rumors. And what he feared the most came true. Yu chose him to go with her on the upcoming business trip. She promised to let him learn from her experience and had high expectations for him. When he came home and told his wife about the rumors and the upcoming business trip, she only considered the rumors as childish and advised him to try his best to show himself. And the day of the business trip came, Anzai understood why there were those rumors, and the reality was many times more terrible than the rumors...