Nian Yang Xiao, came from the Yuan World to save his true love Kong Ling Hui, crossed the border to the Yi World in search of the killer who assassinated his love.

In two parallel worlds that are mirror images of each other, life and death are the same. Nian Yangxiao from Yuan World travels to the Yi World to find the culprit who is trying to kill Kong Linghui because her death will mean the death of the woman he loves. The Yi World and the Yuan World are polar opposites. Nian Yangxiao (Qin Xiaoxuan) is trying to stop Kong Linghui (Xia Nan) from getting assassinated but in this world, they are enemies and Kong Linghui is out to get Nian Yangxiao. At the same time, a mysterious young woman named Yong'er (Wang Yiting), a street thug and a cold-faced police officer appear one after the other making matters more complicated.—ChineseDrama.Info