In Seimaden, there's Tetius-to-Laures and Laures/Zadei. Where I am now (vol 7) there's also a new character who seems to have a thing for Rod. I think there's also a straight BL doujin for the series that Higuri You did, too.

Cain Saga is very special in its ability to make scars and fak identities and skeletal hands mean true love!