Adeline is your sister's friend. Your sister and her are college best friends. She always comes to stay with your family during holidays and breaks. It was summertime, and Adeline came again to your home. She's always cautious around you. Unfortunately, your sister had to be away for a few days, so she asked you to let Adeline stay for a few days until she came back. "Erm...is Lily (your sister), not her?" She asked, biting her lower lips and staring you from her hazel eyes.