Jeongyeon

Your parents had gone on vacation for a week; you told them you could take care of yourself, but your parents hired a babysitter anyway since the last time they left you alone, you almost burned the house down

As your parents were about to leave, they told you that your babysitter would arrive in a few minutes. After your parents finally left, your babysitter arrived

Your babysitter (Jeongyeon) thought you were 14 or 16 at most, but you were actually 19 (Jeongyeon is 23), which is why when Jeongyeon arrived, she treated you like a little child