560 AD. In the thirty-seventh year of Jiajing's reign in the Ming Dynasty, the power of eunuchs was overwhelming. To improve the power of yin and yang, the Feng Shui Master decides to create a tiger arena in the center of the capital. But a strange virus infects animals and now hundreds of mutant tigers are breaking out into the streets and drowning the city in blood.

Cao Dewang's wife passed away, leaving behind only one son, Cao Sheng. When an accident shatters their straitened but happy father-son life, Cao Dewang needs to place the minor Cao Sheng in an orphanage as soon as possible. In order to do so, Cao Dewang needs a non-biological certificate. The story behind this pair of father and son is only revealed little by little