My Monster Fusion of Everything

The end of the world has arrived, and my roommate becomes a sacrifice. When the mist descends, the Blood Spirit Book appears in the hands of all survivors, and only by contracting monsters can they survive.Su Han turns his gaze to the mutated and distorted roommate next door, and silently takes out a shiny fruit knife………Gruesome flesh corpses, giant spiders with torn mouths, eyeballs that cover the city, monstrous hands with one-eyed fangs……Civilization collapses, the city shatters, all humans become food in the mouths of monsters. If you want to survive, there's only one way:Use monsters to deal with monsters.