Atop Mount Hua stood the Five Great Masters of the Realm: Eastern Heretic, Western Madman, Southern Monk, Northern Hero, and Central Freak. After the third Mount Hua Sword Tournament, the Western Madman Yang Guo went into seclusion with Xiaolongnu. Missing Yang Guo, Guo Xiang ventured alone into the martial world and, by a twist of fate, met Zhang Junbao. Meanwhile, a bloodbath erupted at Taihu, trouble returned to Gusu, the Nine Yang catastrophe loomed, the Mongol-Song conflict raged, and Shaolin faced a crisis... The Nine Yin Manual once plunged the martial world into catastrophe. What bloody storms will it unleash this time? Returning to the essence of martial arts: the brave warrior protects the nation and brings peace; the great hero serves the country and its people.