Cultivation of Immortality in the Last Days: I, the Demon Lord, Was Killed by the Zombies

My majestic and full-level Tribulation-Transcending Demon Lord was plotted by heaven when he ascended. His soul fell into the zombie apocalypse and possessed the body of a good-for-nothing high school student who died after being betrayed by his girlfriend. I accidentally discovered that the zombie virus in this world was actually the "poison of the end of the law" cast by the cultivating civilization, and the superpowers awakened by humans are essentially contaminated true energy.