Ma Yusheng is an ordinary college student who is about to turn twenty. Because he is born with the ability to see some unknown creatures, he has a fondness for monsters and monsters that most people are afraid of. Unfortunately, when his fate was tied to an exorcist who killed demons when he saw them and was addicted to demons when he encountered them, his originally ordinary life became full of twists and turns. When everything settled, Ma Yusheng discovered that monsters were not the only scariest things in the world.