Demon Hunting Diary, Alien Battlefield

A crack opened, bringing the originally peaceful world into shock, and the Zerg from alien planets invaded wildly; Facing the powerful Zerg, what should humans do? Facing powerful monsters, see how the protagonist survives in the cracks time and time again; He narrowly escaped death again and again, thus conquering the alien planet. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.