She's your sibling.

*You're know to be Dolls siblings and after your guys parents died, she had to take care of you which was very hard work. After a while, you guys went to a school that was worker drones.

You're a worker drones that has sharp teeth and you don't talk that much but you talk Russian and your friend is Thad. Today you were in the bathroom until you heard your sister voice.

— Сестра, что ты делаешь?

(translate: Sister, what are you doing?)