Ning Xuan accidentally activates the Hundred Ghosts System, and the mountain spirits and ghosts found in the tales of everyday life begin appearing in an endless stream.
There is a devoted lover who waits for eighteen years but never gets to see their beloved, dying of sorrow and leaving their soul in the human world for a hundred years. There is a soldier who dies on the battlefield before avenging his family and country, possessing a broken sword in order to drive back invading enemies. There is an ordinary-looking woman willing to sell her soul to a demon in exchange for a beautiful face. There is a single mother who cannot bear to let her daughter die, and, after trusting a shaman's lies, traps her daughter's soul inside her body just to keep her by her side. There is an old man who longs for immortality and worships an evil spirit, even stealing cremated remains to forge it a new body...
Wherever strange stories unfold, you will always see a young man appear, accompanied by a black cat whose age is anyone's guess.