Before going to college, an ordinary high school student went to celebrate and got drunk. When he woke up, he found himself in a completely different world. There was a big sect, the approaching sect entrance examination, a slum where his body's previous owner lived, and a shared memory about a missing young girl. When he got tangled in a fight with a few punks in this different world, he fell off a cliff and miraculously found himself still alive, with two more voices ringing inside his head. They were Sword Master and Saber Master. In the company of them, he continued to find out more about this whole new world. He took the sect entrance examination, entered the sect, met a strange man in black, and even participated in a major competition of the sect to have a chance to win over his peers! In this whole new world, he was born again and got to explore the fantastic martial world!

In the summer of 2017, outside the solar system, some super martial arts clans located in Ziwei constellation wanted to build an unprecedented large-scale tactical transmission route to facilitate their development of the southern galaxy. However, that route coincidentally passed through the earth, which, therefore, would be demolished. Unfortunately, earthlings had no idea at all except an old faker. In order to protect the earth and save the whole mankind, the old faker chose a 14-year-old boy, Li Mu, who had no parents, to learn his lifelong martial art skills, and then, he sent him to a low-level martial arts planet in Ziwei constellation and let him use another man's identity of Taibai county magistrate in the Western Qin Empire. Then the youngest county magistrate Li Mu began his practice alone. Could the 14-year-old boy shoulder such a great responsibility? Could he ultimately protect the earth and save all mankind? What did he experience during that adventure?