Cold-Blooded Beast

The death of Chae-heon, a boss that I was looking at it for a long time.
The fill that I was trying to hold on to is going to fall apart.
But the familiar impression that comes into sight clouded with tears.

Chae-hun returned alive.

But his memory, his eyes, his body temperature, changed…?

What is the identity of the beast in the shell of the perfect Chae-hun?

One person and one beast. Breathtaking cohabitation story of two men.