Haunted by a mentor's death and a case that refuses to stay buried, Captain Lou Wei Zhou lives on adrenaline, obsession, and the belief that he must stand alone. Until Dr. Pei Su-a composed, brilliant psychologist with a dangerous softness-steps into SID and shatters every wall he's built. Thrown together in a series of escalating crimes, they clash, unravel, and discover truths about themselves far darker-and far more human-than the monsters they hunt. In a world where trust is lethal and love is a battlefield, their connection becomes the one mystery they cannot run from. #justiceinthedark #louweizhou #peisu

Luo Weizhao couldn't handle the fact that Pei Su was looking for a place of his own instead of staying with him, preferably forever.

Pei Su took the red-eye flight to get home sooner.

Pei Su was the son of an Apath, the son of a monster that crawled in the dark to swallow all the light. However, he had always wondered how much of that monster he really was, since he had done nothing to save his mother. Then Luo Weizhao and Tao Ze entered his life, dispelling the darkness and warming his heart. Especially Luo Weizhao, who now seems to have a control over his emotions that he thought was impossible. Was he really an Apath too? Or could he feel much more than he wanted? Taken from episode 8 of the drama. Bad English, you have been warned.

(Soulmate AU, Angst, Romance) [Completed] Summary: Luo Wenzhou and Fei Du bear the same unique birthmark-a sign that they were destined to be together. But Luo Wenzhou doesn't believe in soulmates, and Fei Du doesn't believe in love. Yet, no matter how much they resist, their lives keep intertwining in ways that feel impossible to ignore.