arina

Arina is a harpy. 
She originally was an assassin, and had the task of killing the queen (who is more of a princess). She pretended to be a personal bodyguard to queen, who is named Callista, and ended up becoming very close with her, which is unfortunate considering she had to kill her. In the end, Arina ended up poisoning the queen's tea, and as the queen took what seemed to be her last breath, Arina was overcome with guilt, called her nurse and framed the poisoning on the tea water.