Shop Owner in the Death Valley

It has been ten years since Cien Millard was trapped inside Death Valley. A cursed place shunned by everyone. Only those crazy and desperate people who dare to go in there. Right at the end of his life. Cien, who he thought was going to die, turned out to be remembering all of his previous life on Earth. With new memories and a cellphone now in his hands, Cien is determined to survive to be reunited with his family. It's just that, different from the cheats he usually read, he only gets the game managing a shop as a weapon for survival. "Are you crazy?! What kind of madman would shop in such a godforsaken place?!"