According to legend, when a person dies unjustly, or has an obsession that cannot be let go, his soul will be trapped in the world and unable to enter reincarnation.
These unfulfilled wishes and strong emotions do not dissipate after death, but continue to grow, eventually twisting the soul into an "evil ghost".
Intention: Evil ghosts are just obsessions that living people cannot let go of. Under the old local customs, it writes about the debt and helplessness of family ties in the fate of a family.