The fifth volume of the Legend of the Dragon King on Douluo Continent 3 had yet to be released. There were four volumes in the Douluo Continent series, namely Douluo Continent, Douluo Continent II: Golden Pupils, Douluo Continent III: Nine Netherworld Demon Emperor, and Douluo Continent IV: Legend of the Dragon King. This novel narrated Tang San's growing up on Douluo Continent as well as the emotional entanglements between him and the various characters.