Doomsday Purification

[Apocalypse + rebirth + System + special abilities + no harem + not saintly + ruthless and decisive + feel-good story]

One night, energy rained down from the sky. Humanity turned into zombies, and the outbreak began.

Animals and other creatures evolved. The oceans became even more terrifying.

Humanity’s place at the top of the food chain vanished in an instant.

That night, Su Fan awakened his System…