The Lord God Gave Me a Doomsday Supermarket

Qin Yu, a young man without a job, applied for a job as a cleaner to make a living. After working for a month, he opened the red door out of curiosity and was fired. As a salary for one month of work, the employer gave him a large supermarket and he also gained a special skill. , Whenever danger comes, three sirens will appear in front of Qin Yu's eyes, flashing red lights, and at the same time, he can also see a bright red light appearing in the direction of the danger. The redder the light, the closer to the source of the danger, and as long as he stays in the Doomsday Supermarket, he will be safe. After a terrifying sound sounded, the entire city disappeared overnight. Facing unknown dangers, can Qin Yu survive in the doomsday world?