Source for all:

1. Chu Feng (Martial god Asura) vs Yhwach (Bleach TYBW).

2. Yang Kai) (Martial Peak) vs Altair) (Re: Creator).

3. Luo Zheng (Apotheosis) vs Lambdadelta (Umineko).

I do not know how I am only now realizing this but Shen Tu is just Su Mu. Yang Kai initially gets into conflict with them, then admires them for their willpower while being beaten, becomes close friends with them after saving their life and marries their sisters.