The most yang blood, the most yin soul, is the four kings of hell; the place where the soul returns, the place where grievances are gathered, is where the king of hell hides.
In another parallel time and space, there are only four Yamas, each in charge of his own realm, and each has a judge under it, which is impermanent. In the territory of the Four Hell Kings, a private high school in a fifth-tier city covers an area of 300 acres. It was a sinkhole 1,200 years ago. It was once filled with corpses and filled with countless resentful spirits. The Four Hell Kings personally set up a branch to suppress it. Meng Po soup is mixed with black gold water for ghosts and ghosts. If mortals drink it, they can go to the underworld. Chiliu, the king of hell, and Yinchen, a high school student, fell in love across the Yin and Yang.
Concept: Yin and Yang worlds, humans and ghosts mixed together