This Zombie Apocalypse Is Nothing! I’m a Haunted House NPC

[Apocalypse + zombies + no pocket dimension + not reborn + foresight + no System + careful planning + military + one woman + no romance + no do-gooder protagonist] Gu Xu was a lousy person. While cleaning up at an escape room, he suddenly saw a vision of the apocalypse. Of course he had to share such good news with his friends. “Zombies are coming? Then I can see whether I look more like a zombie than they do.” “Boss Gu, that's amazing! You've come up with a realistic zombie chase experience? How much does it cost? 998 or 98?” Huh? Come to think of it, I do play a zombie every day! Real zombies, huh. Heh. Time to clock out! “Gu Xu, if you're sure the zombie apocalypse is coming, let's drink some cola and wait for it together!” Zhao Jian said as he pushed open the door. Well, there went clocking out. Guess I'd better keep cleaning and pretend to work. And then... The apocalypse really came! But what do we need? Food! The store has it! Weapons! The store has them! Protective gear! The store has it! What, you mean guns? The store really doesn't have those! But there's a live-fire shooting range next door, and they have them! You mean zombies? Sorry, the mall is about to close down. Forget zombies, there isn't even anyone around! So what can we do? Looks like all we need to do is lie low! An apocalypse unlike any other. It turns out that even without a pocket dimension, life after the end of the world can be this carefree.