The Wuxia Crossover: A Record of Mending Heaven

Three brothers travel to the world of mixed martial arts (a fusion of worlds such as Jin Yong, Gu Long, Legend of Two Dragons of the Tang Dynasty, Swordsman in the Snow, etc.). The protagonist 1 Qiu also gets the Li Xunhuan template, the protagonist 2 Da Fei gets the Qiao Feng template, and the protagonist 3 Changchun gets the Dugu Qiubai template. They grow up with their familiarity with various martial arts stories, make up for the regrets of the original work along the way, and grow through the classic plots of the original work.

Interesting hahahahaha