 If you liked
Neo Angelique Abyss
|
 ...then you might like
Uragiri wa Boku no Namae wo Shitteiru
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Both series have a group of people with supernatural powers fighting monsters, and living in a big mansion together. The main character is a special person who must be protected at all cost.
In both series there is an organization with different ideals opposing the main group, and the fate of the world is at stake.
Not much romance in either series, but they do have handsome characters and occasional shiptease.