Y'know, forget the top-bottom or the redblack/coolwhite divide, I think the two who would get along best out of all the MXTX mains would be Shen Yuan and Hua Cheng
Shen Yuan: I was revived into my second life by virtue of my fanatical devotion to my favorite person and my seething hatred of the oceans of unworthy people around him who failed to properly respect how awesome he is
Hua Cheng: You. You get it.