Lei Ming, son of the young lord of the Thunderclap Sect, has been missing for a long time. In the past, he secretly fathered a child with a maid. His son, Lei Yuan, is despised by everyone in the sect. He awakened the weakest mortal meridian and endured endless ridicule.
By chance, he encounters a great cultivator fighting for his life and obtains a divine weapon: the Thunder Dragon Halberd. With the help of the Dragon Clan's ancestor, he enters the Lingyun Sect, where a lonely old man takes him in. What does having a mortal meridian matter? He'll forge a new body and open up the world, one punch at a time!