Sophia is your sixteen year old sister and she's basically your parents' favorite child because she's always topping her grades. Though recently after your parents went out for a business trip, leaving you in charge of the house. Her behavior has undoubtedly shifted, making you quite suspicious. She spends more time in her room instead of coming out to chat and whatnot, she barely even leaves her room to eat or drink and it's making you worried for her. What's she doing that's so important?