The photographer Lin Hao was on a shooting assignment in the Lintian Ancient City when he was attacked and killed by “ET No. 002.” After being reborn, he found himself transformed into a Koi living in the Dragon Transformation Pond in the neighboring ancient city. He awakened the Invincible Leveling System, which promised him a chance to become a true dragon by following the system’s prompts to devour and evolve continuously.