The setting of this novel is at F Province, China. The weather is very cold, and it is snowing heavily.

Because of the snow, farms have been deserted, so that when two cars collide with each other, there are actually little or no witnesses.

The patients are rushed to the hospital, and the nurses and doctors try to save the lives of the injured patients.

Shanan wakes up and finds himself in the hospital. He wonders why he is there. He is aware that he has transmigrated and is now living in another person’s body.

As his memory becomes clearer. He remembers that he had fought a bear and had almost died, just like Xue Lang, the original owner of the body he is living in.

Shanan is glad that his face was not disfigured, but he has a very strong feeling that his woes are not over.

The next instant, his fears are confirmed, as Hao Jianhua visits him at the hospital, warning him not to tell anyone what really happened when the bear attacked him. Shanan does not recall the secret that Hao Jianhua wants him to keep, but he plays along. He cannot let anyone know that he is not the real Xue Lang.

Hao Jianhua attacks Shanan, thinking that the latter is weak, but even Shanan is surprised by the extraordinary strength that he uses to beat Hao Jianhua. He beats Hao Jianhua so hard that the latter races out of the hospital ward in fear.

Hao Jianhua starts to read about Xue Lang’s history, and he discovers that he was a hunter, an assassin, and a fighter.

This leaves Shanan with only one question:

How is he going to live up to Lang’s standard and pretend to be him?

C646 There's a Clue