Huang Nilang: When he was 3 years old, he witnessed all his relatives being tortured and killed, and became the executioner in order to avenge his relatives.
Varoja: A superpower killer trained by a certain country. After being betrayed by his own organization, he was accepted as an executor by the execution world.
Situ Keming: A silver-haired man who is half human and half demon. His mother is a cat demon in the demon world, and his father is an ordinary office worker.
Ouyang Xingdou: A half-human, half-elf beautiful boy who takes the place of Huang Nilang's former roommate.