This Martial Arts Does Not Talk About Martial Ethics

A social beast who died suddenly after staying up late writing code traveled to a world of martial arts where five major schools coexisted. He discovered that he could combine the skills of different schools, so he used the most outrageous "mix and match moves" to defeat the strong men of all walks of life, pretending to be awesome all the way, and eventually became the "God of School Fusion" that made the entire martial arts world dumbfounded.