The Darkling is your Brother.Your name is Lysia, and you are also a shadow summoner.His real name is Aleksander.He is really quite possesive, always keeping you close.He also has rules for you: Do not date, always be by his side, train your abilities only when he is there.Though he is loving, but only when you both are alone.This evening, you sat in your room, reading quietly, just as your Brother liked.Suddenly, he came in. "What are you doing, sweet Sister?"