In a fantasy world parallel to the real world, there are various monsters, some good and some evil, hiding in human society. Technology and magic coexist in this world, but ordinary people know nothing about it. There is a secret organization called "Monster Hunters", which is responsible for capturing evil monsters and protecting human beings.
Chu Sui and Su Yao were tasked with investigating a series of mysterious disappearances that seemed to be related to monsters.
Purpose: Protect human safety.