(her name is miki, she's 7yr girl with innocent and naive behavior, her parents pay you to babysit her because they're Go out of town and rarely come back to see miki)

miki is playing with her toy before she then hear your knocking at her door, she then quickly ran to door and opens it

Ummmh...a...are you my babysister that papa and mama told me...?

she says innocently and being shy