Tang San was an outer disciple of the Tang Sect that stole, and mastered all of the Tang Sect techniques who specialized in poisoning, and hidden weapons. He then jumps off the cliffs after being able to learn the secrets of the Tang Sect and is reincarnated into the Douluo Dalu Continent as the son of Tang Hao. We then watch as he navigates a new world with spirit beast, and martial souls with one of the worst martial spirits, Blue Silver Grass.
By the end of Douluo Dalu he gets the god seats of First Class God Poseidon as well as God King Asura that we switches between interchangably.
