I Am Cultivating Immortality in the Last Days

A cultivator who was about to enter the realm of becoming gods, had a deep sleep, and the world changed overnight. When he woke up, he found that this was no longer the cultivation world of immortals and gods, but... The end of the world... Although I don't know what's going on, seeing as humans are about to become extinct, I have to do something. That's right... I want to save humans from this apocalypse and destroy those unknown monsters! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.