The Absolute Martial God of the Fallen Noble Family

The strongest Martial Arts Alliance Leader in history, the Heavenly Wolf Martial Emperor, Baek Mu-rang. What awaited him after ending all the battles was betrayal by his wife and being discarded like a useless hound. “If I had known it would end like this, I should have never married in the first place.” Death met in a state of deep regret. However, when he opened his eyes once more, he was in a completely new world. As Sirius, the youngest son-in-law of the fallen noble house, the Rigel family. There is no Martial Arts Alliance? Then I shall create one myself! To do that, I'll have to save this family first, right? This time, I will build a true Martial Arts Alliance. The Heavenl...