King Jing Chu Lingxiao traveled to modern times and fell naked into the bathroom of young detective Gu Yunzhou. A Machiavellian king and a flat-footed fish are forced to start a frantic cohabitation life. The prince pays his bills with a jade pendant and regards the toilet as a monster, but he becomes popular all over the Internet by live-streaming his quotes on governing the country. And when the mysterious organization came to their door, they discovered that this time travel was actually the beginning of a thousand-year war...