In order to keep the obsessive souls bound to the human world, humans and ghosts built a bridge through the phone. The numbers on both sides of the yin and yang connect the two worlds, but they gradually evolved into a channel for the resentful souls to take revenge on the human world. The undead murders became more and more serious, and finally attracted the attention of the human world. Ten "Research Departments on Undead Abnormal Murder Events" were established in the yin world, referred to as "Supernatural Departments". The supernatural departments on the other side of the yin world are the respective domains of the undead. Arrogant and irritable, she grew up to be a gentle scum and a black-faced bastard
Intention: Destined unilateral redemption.