Set after the drama series "Caution, Hazardous Wife," with Isayama Yuki pointing a pistol at Isayama Nami after she comes home. Nami was a special agent, but she hid her past and married Yuki. Her husband, Yuki, pretended to be an ordinary office worker in an IT company, but he was really an agent for the public security department. (Source: AsianWiki)