07-Ghost, +C: Sword and Cornett Recommendations
The main protagonists both are trying to avenge a 'family' member, both are thought of as lesser than those around them, both lost their families, both are being searched for by those with power, both have roles they will have to fulfill in the future that they are currently unaware of, both are kids, both are fighting things that are no longer human in time that is not taken up by the main storyline, both are devilishly handsome, and both have people helping them for unknown reasons.
Both are action and fantasy series but 07-Ghost adds a hint of the supernatural in it. They also both have a lot of bishounen characters!
Seeing the main characters, Teito Klein (07-Ghost) and Belca (+C: Sword and Cornett) reminds one of the other character. Both have been treated badly by others but have found people they could trust and protect. Both put other people's lives first before theirs. Both are royalty as well.
07-Ghost and +C: Sword and Cornett are currently on-going and definitely worth to read!