Fatty Seven kidnaps Chu San to blackmail Liu Yi. Ignoring people's advice, Liu Yi goes to the warehouse to rescue him.

Wounded and on the run, Liu Yi takes refuge in Chu San's apartment. As danger closes in, the bond between them begins to deepen.

A mysterious man appears beside Chu San, stirring intense jealousy in Liu Yi.

When an unexpected crisis strikes the He family, Liu Yi rushes to help. In the aftermath, he and Chu San finally open their hearts to each other.

At the graduation party, a slightly tipsy He Chu San and Xia Liu Yi find themselves drawing closer and closer.

With Chu San's plan in motion, can Xia Liu Yi clear his name and return to Xiaoqi Hall?

He Chu San takes meticulous care of the unconscious Xia Liu Yi and hides his whereabouts. The two begin an awkward cohabitation in a small room.

With Liu Yi's boss and sister both dead, Xia Liu Yi is framed by his own trusted men and branded a kinslayer hunted across Hong Kong. Badly wounded and with nowhere left to run, he reaches He Chu San at the edge of death in search of refuge.

In the lawless maze of Kowloon Walled City, Xia Liu Yi is one of the fiercest fighters around. To help launder money for his triad boss, he helps produce a film project and forcibly drags He Chu San, a college student, into writing the script. Chu San wants only to escape—but when a set collapses, Liu Yi dives in and shields him in his arms. Their fated encounter begins.