Abandoned by my team in the apocalypse, I grab all city treasures with scavenge radar

Rifts descend, forcing all humanity into doomsday dungeons. Transmigrated into a penniless high school senior named Lin Yu, he fails to awaken superpowers and becomes a worthless weakling. Abandoned ruthlessly by his school beauty childhood sweetheart and elite teammates right at the start of the dungeon, he binds the Survival Radar System in his hour of despair. It scans all supplies, zombies and danger markers across a wide radius. He scavenges discarded junk to gather medicine, firearms and divine gear hidden in abandoned vaults, quietly growing stronger with a spatial backpack. While others slaughter each other over meager resources, he roams the zombie-infested city alone, gradually rising to become the legendary King of Scavengers renowned throughout the wasteland!