Tang San is one of the Tang Sect martial art clan’s most prestigious disciples, peerless in the use of hidden weapons. After committing the forbidden crime of stealing the sect's ultimate lore to complete his craft, he leaps from Hell’s Peak to his death. However, he is reborn in a different world: the Douluo Continent.*

In this world, there is no magic or martial arts as he knew them, but every person possesses an innate "Martial Soul" that can be awakened at age six. While most have useless souls, a rare few can cultivate their souls to become Spirit Masters. Tang San awakens two souls—a rare "twin soul" phenomenon—but one is the Blue Silver Grass, widely considered the most useless soul in existence. Using the hidden weapon techniques and mental cultivation from his previous life, Tang San sets out to prove that there are no trash souls, only trash Spirit Masters, eventually forming the legendary "Shrek Seven Devils" and challenging the corrupt gods of the continent.