A temporary employee of Amagi Pharmaceutical, Yui Sato (Airi Matsui), was drinking alcohol at the bar because mourning the loss of her dog. She shouts drunk, "Develop a medicine that revives from death ." Instead, a man says"The dead do not survive."and he will give her a medicine that will allow her to meet her dog right away. In addition, he said cruelly, "Do your barking at home." Then, Yui trips him with her foot as revenge and he falls out in the store, and she says , "iIts on purpose." Without knowing that the man is the president of the company, Kyoichi Amagi (Makomichi Hayami) ... The next day, Yui is called into the president's office thinking she's to be fired. However, the words that Amagi just said were "Please make me your slave."