Modern cities appear calm on the surface, but in reality they are undercurrents. When human desires and fears materialize into "inner demons", when dimensional cracks open, strange things descend, and the world falls into chaos. Lin Yuan, a psychological counselor suffering from "deep empathy", accidentally awakened the power of "hunting inner demons". He shuttles between reality and mystery, feeding on other people's "inner demons" and using his own "Tao Heart" as a blade. On the edge of madness and sanity, he hunts those heart-devouring monsters and explores the truth behind the collapse of the world.
