The global demonic tide is surging, and delivery boy Lin Fan has obtained the only "hunting system in all realms", which allows him to lose money, equipment, and black technology by defeating monsters. He founded Longyin Technology by relying on drops, turning monster materials into products for the business empire; he then unlocked the slave player mechanism, cultivated the combat power of the Feilong Nation in batches, and led the Dragon Guard Bureau to crush the global battle for rifts; after the Demon Tide was made public, he established the human military industry system with the Dragon Yin Group as the skeleton, leading the Feilong Nation to become the most powerful country in Blue Star, and finally counterattacked the Abyss and ended the Demonic Tide.