"Black and White Pet World" tells the story of the protagonists Xu Xuyao and Cao Ruilin. They first met in a bar, but later Cao Ruilin found out that he was a stand-in, not the Bai Yueguang in Xu Xuyao's heart. Xu Xuyao investigated and found that Cao Ruilin was his original Bai Yueguang. Xu Xuyao tried every means to beg Cao Ruilin to come back. Finally, because of an accident, the two successfully got back together.
