Apocalyptic Dark Cultivator: Infinite Upgrades Starting in Neon City

[Decisive and ruthless] [Feel-good power fantasy] [Leveling up] [No System] [Demonic cultivator] [Plenty of beauties] [Villain] [No self-righteous saint] Bad news: the apocalypse has arrived. Good news: I'm the only cultivator in the world, and I'm a demonic cultivator who'll stop at nothing! Killing zombies earns me merit! I'm covered in golden light, making my wickedness look downright righteous! Civilization has collapsed, so I no longer have to meekly hide who I am or worry about getting shot. From now on, I'm the one true god! And I don't eat beef! Starting in the neon-lit streets, I'll level up without limits. The girl next door in her school uniform, sisters from the kendo and archery clubs, a long-haired, taciturn student council president, a shrine maiden, a mature beauty at the Sakura Hall... If you don't work hard in the apocalypse, you'll end up as a brother in the Emperor's Banner!