On the Night of the Great Nuo, strange beasts from the Classic of Mountains and Seas seep out of mirrors. While handling the corpse of a Dangkang at a funeral home, Lin Yuan is “parasitized,” and a bone pagoda grows inside his mind. To stay alive, he has to wear a Nuo mask belonging to a strange beast. But if he wears it for too long, he’ll never be able to take it off again.