Su Yun is transported to a world where everyone must survive in dungeons. All people are trapped in dungeon chambers, where resources are scarce, monsters roam freely, and danger lurks everywhere. He awakens the Infinite Synthesis talent, allowing him to combine ordinary materials into high-grade resources and powerful divine weapons. He scavenges dungeon resources, hunts monsters, forms contracts with powerful companions, and constantly tempers his strength. Starting from a dilapidated initial cell, he repeatedly breaks through dungeon levels and unlocks god-tier professions. Amid the brutal struggle for survival, he overcomes countless deadly dangers, outshines thousands of competitors, and firmly claims the top spot on the dungeon survival leaderboard.