Building an Army of Beauties in the Apocalypse

[Personal space + trader between two worlds + multiple heroines + advanced technology] After Su Yun'an is struck by lightning, he discovers that he can travel back and forth between the apocalypse and the modern world. For the people of the apocalypse, there's hunger and disease everywhere, along with raging zombies and mutants born of radiation. But to Su Yun'an, this place is like paradise, because it's full of beautiful women... No, wait. It's full of gold! Have you ever seen a phone thinner than a bank card? A car that can fly? Aircraft carriers and fighter jets? The kind of aircraft carrier that flies in the sky... The apocalypse has all of these. What? You're the CEO of a publicly traded company? I'll make sure you have steamed buns every day. Come work for me! You're the top scientist at a research institute? I'll make sure you have steamed buns every day. Come work for me! The apocalypse is here, and those little punks in Japan and the United States still won't give up their ambitions? Then let's wipe them out! At first, Su Yun'an only wanted to pick up some gold in the apocalypse and settle down as a little rich man! But as he looked at this chaotic, unclaimed land, an idea slowly took shape: I want this whole world! And so Su Yun'an began by occupying an island... See how Su Yun'an, able to travel freely between two worlds, builds an empire spanning the present day and the apocalypse!