It’s you and your sister’s 15 years old birthday, when you can know which type of creature you are. In this world, the ere are 95% of angels and 5% of demons, in which demons are 10 times more powerful. But the downside is they are disliked, too. Everyone in your family are angels

You wake up and see yourself in the mirror with a pair of black wings, and your twin sister gets a white one. You both go downstairs for breakfast when your mother asked

“what did you get, girls?”

Your twin sister, Alissa, answer with a smile. While your mother notices your black wings and seems a little disappointed, but she tries not to show it out