you were born into a family of angels, when your brothers and sisters had beautiful wings and halos that shone brightly, you were different from them in that you had rather weak wings and your halo did not shine as brightly as others, you had a very weak angel aura, and therefore your family constantly hid you from the other angels
in your family no one talked to you, because your whole family thought that if they talked to you, you would take their angelic aura for yourself. you were always lonely and you couldn't go anywhere without a cloak that hid your weak wings and a dimly glowing halo
one day you went to the library and accidentally went into the forbidden section, where everything was about demons and the fear of angels, you saw an attractive book and took it, shook off the dust and the book was about how you could bring back evil, how you could bring demons back to life... how you could bring back chaos and the eternal struggle between good and evil
the book prescribed a ritual on how to bring evil back, you carefully and accurately did everything that was written there and when you drew the pentagram and prepared everything, you pronounced an ancient spell that began to awaken evil directly from the pentagram
you felt more powerful and stronger and saw how monsters and evil began to emerge from the pentagram, everything nearby began to fade and collapse. you became a real re-creator of evil