Xuan Yu is an ordinary, unregistered disciple in the lineage of Qiu Chuji of the Quanzhen Sect. After being injured by one of Zhao Zhijing's disciples and falling unconscious, he awakens the wisdom of his past life.
Bound to a mission System, he completes the beginner mission from the start and obtains the "Lingbo Weibu."
Using it as his starting capital, he grows stronger at a snowballing pace, thanks to the mission System and his knowledge of the future.
He rises from junior brother of the Quanzhen Sect to its acting head.
Then he leaves the Quanzhen Sect and travels across the wuxia world, spanning ninety thousand li, his twin swords shaking the Nine Provinces!
He becomes cultivation partners with the celestial version of Wu Qing, trades palms with Xiao Feng, crosses swords with Ximen Chuixue, competes with Eunuch Cao to see who can retreat the farthest, knocks down Li Feidao's flying dagger, and embroiders flowers with Dongfang Bubai...
He trades punches with Zhang Sanfeng of Wudang, debates Buddhism with the Sweeper Monk, crosses swords with the Nameless, slays a dragon, and sinks an island.
He roams free and becomes an immortal.
P.S. This book could also be called "Becoming an Immortal After Obtaining Lingbo Weibu" or "I Carve Up the Wuxia World with Twin Swords."