The Angel Assassins

Katherine is a few thousand year old woman, who also happens to be an angel. She blends in as a college student because she doesn't look a day over twenty. Katherine is special because she is also an assassin, she is not good nor is she evil, the catch. There is only one assassin at a time, feared by dark angels and looked down upon by light angels. When a lost civilization of demons come to town, Katherine not only has to protect her friends, but also has to deal with a strange guy who claims to be an assassin as well, to make matters worse, Katherine is undeniably attracted to this guy. Will she fall for this mysterious man, or end up killing him.