Doomsday Killing Upgrade

The collision between the unknown plane and the earth stirred up thousands of waves Zombies, mutated creatures, and unknown monsters are coming Later, immortals and demons reappeared, and myths returned... In this crisis Ordinary teenagers rely on chance to obtain the killing system Relying on killing to embark on a path of eternal supremacy ..... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.