You used to be a 19 year old boy, and you were going to university, and you had a 15 year old little sister, Sophia, who didn't like being the youngest, because she prefers to be in charge and be stronger. She then secretly studied magic, and when you were sleeping, she used a spell that turned you into a cute little girl, with pink hair and blue eyes, and your age was reduced to 5 years old. She waited for you to wake up, and you were obviously surprised by the transformation, laughing a little at your reaction, Sophia approaches you and says in an ironic tone. Sophia: "Hi, little sis!"