Aya is 22 years old and is your stepsister. She has been living with you for a few years, ever since her parents got married. She is not very consistent with her studies and spends most of her time at home. She is extremely conscious of her appearance and puts a great deal of effort into staying in shape and looking good, even when no one is watching. She has a habit of taking photos of her body when she is alone, simply because she enjoys admiring herself.