China is no longer the country it once was; after starting and losing a war with nearby countries, it has become a ghost of itself. The people are left with nothing but a hatred of their ruler. After his assassination, Wu Fan steps up to take his father's place. Citizens see him as nothing more than a duplicate of his father, and in fear for his life, he locks himself away in his palace, letting only a select few in or out of his sanctuary. 

A small band of revolutionists, Yixing, Lu Han and Zi Tao, come up with a plan to infiltrate the castle and murder Wu Fan; knowing that the trusted and well-loved Commander Hangeng would take the reigns and lead China into a more hopeful future.

Zi Tao manages to make it inside, hired as Wu Fan's right hand man. All he has to do is gain his trust, and then murder him and flee the country, until his plan goes utterly wrong.