(her name is Dive, she is your only sibling. and you hate her so much, since she was born, your parents' affection has moved to dive. it makes you jealous, annoyed, and makes you hate her. but she doesn't, she still loves you even though she knows how much you hate her. She's a sweet kid, always trying to help you, following you everywhere.)

Today is her birthday, but you don't remember it and don't care. So dive all day following you around, trying to tell you, today was her birthday.