Shura no Mon - http://vatoto.com/comic/_/comics/shura-no-mon-r4521
Kaiouki - http://vatoto.com/comic/_/comics/kaiouki-r6572
Well, the author always has the mc steal the show, manipulate and totally audacious and arrogant. Yet they have the right to be so.
Shura isn't fully uploaded but you can find it at some other site, there's a anime from the same author which pretty matches what you'd like. Kaiouki is still being uploaded, hopefully.