Eighteen years ago, the Zhou family was massacred, leaving only Zhou Hao alive. Three masters took him in, teaching martial arts, medicine, and giving him wealth.
Now, Zhou Hao goes down the mountain to seek revenge.
On his way, he gets help from three martial sisters: Yang Tongtong, a valiant female heir; Tang Weirou, a medical prodigy; Chen Xueer, a female battle god. His fiancée Zhang Furong, with the Zhang family's support, also joins in.
With their aid, Zhou Hao finds out the Murong family is to blame. After tough battles, he avenges his parents.
However, he's now in a dilemma. All four women love him, and he doesn't know what to do. Truly, love is the hardest hurdle in life.