Full of Regret

Trisstel appears to be an ordinary, yet dark, seventeen-year-old girl, but she's really a vampire who has been around for almost four hundred years. She has two best friends, both of which are vampires, that she would do anything to keep safe. They meet three vampire guys and a young vampire girl that Trisstel becomes an older sister for. They learn many lessons throughout their time together, and also fight to defeat an evil vampire that's out to get them. These unusual friends face twists and turns that test their friendships, but also make them stronger in the longrun.
Trisstel is the main character and the story is in her point of view all the time, unless specified in a certain part.