I, the Prince of Zhenbei, the Best Swordsman in the World

In the thirty-seventh year of Emperor Xuanwu's reign in Dayuan, a black storm swept across the Central Plains, the imperial power collapsed, and martial men ruled the country. This year, Gu Linyuan went to Beijing as a hostage on his father's order. A broken carriage, a one-eyed old pawn, and a Han Yuan Sword hidden in the dark. Faced with the suspicion of the court, the strife of the powerful families, and the assassinations of the Jianghu. He chose to wear a dandy mask. He was drunk in a brothel, but in fact he used his finger as a pen to outline the world's chess game in the palm of a beautiful woman. He gambles heavily in the casino, but in fact he listens to the wind and catches deadly murderous intentions in the hustle and bustle. Everyone knows that the northern border is bitter and cold, and no noble spirit can be cultivated. Gu Linyuan laughed at the fact that all the dignitaries in the city were like bones in the graves. "My father asked me to fulfill the duties of the king and his subjects, but this old thing on the dragon chair is worthy of it!?" Let's see how he uses his mortal body to practice the Hidden Dragon Technique and conquer the five realms and ten directions. In this stagnant Tianjing City, stir up the storm and rebuild the country! The emperor guards the country? No, starting today. In this world, the surname is Gu!