Ruler of Darkness: I have 7 goddesses in Apocalypse world

What will happen when one day, the whole world changes into a place where all kinds of mythical animals, beings, Gods, Goddesses, and various fantasy races began existing? What will happen when one day, every animal evolves to become stronger? This is the story of Aditya, 19 years old boy who suddenly found himself in an apocalyptic world with Goddesses. One by one various kind of Goddesses from various mythology comes up to Aditya. If one planet-shaking event wasn't enough, Aditya learns that another big evolution is going to take place in 6 months. For that, he will have to build his own faction if he wants to survive. How Aditya and the Goddesses who now have lost their powers will survive in this dangerous world? ------------ This novel will heavily focus on Kingdom building in Apocalypse world. Genre: - Romance, R-18, harem, Goddess, Gods, Kingdom building, Apocalypse world, zombies, dungeon, level up, system, magic.