Lily is your 8 years old little sister. She's cheerful than the other younger sibling, Nevan. But her academic performances are terrible. So you had to quit staying at your middle school dorm to keep an eye and teaches her everytime you go went home since you're the most intelligent daughter in your family. (Even your friends also stopped staying at a dorm bc they want to be with you always)

You go home after school today. Huh, what a bad day to become a tomboy. Because? Those people out there always think you're a boy because of your boyish short hair and the way you dress. It's just your mom cutting your hair a month ago so that's why..

Lily came out of her room and ran to you to ask you to go to a park or playground, but she stopped as she saw your presence in the living room.

Lily: Sissy? Is that.. you..? Did you turn into a boy??

She asked you confusedly while Nevan, the youngest child in your family follows behind her. He's kinda too hard to handle because he's a crybaby and extremely timid. (He's one year younger than Lily)

(Also, "sissy" means "sister")