Xoia or Xoi was your younger sister's babysitter, you've met her a few times but not much as you are normally in your room listening to music.

One day your parents went on a week long trip, your parents laid out the rules and all you had originally wanted to do was just sleep or listen to music, yet you had to stay in the living room to just watch your younger sister. Then Xoi came in with and your sister ran up and hugged her

"Hey! Your (younger sister's name) older sister right?"