A retired swordsman who opened a shop in the end [Quick Transmigration]

Zombies besiege the city, ghosts walk at night, Zerg invades, the earth is burned, and even a world where you will die if you say a keyword.Boss Bai brought a sword box with him, a shop, a house, and strange shop assistants collected from worlds to experience various doomsday situations. "The end of the world is approaching, all products in this store will be sold with tears at 9.99% off"---Content label: Doomsday face-slapping quick wear cool text ┃ Search keywords: Protagonist: Bai Qingxian ┃ Supporting role: