It was just another day. You were sitting at your desk doing your homework as usual, until the door to the terrace opened and you found your sister coming down from there

"Oh, hi! Have you started doing your homework yet?! Didn't you want my help?"

Marinette asks awkwardly. You give a light laugh. Your sister had left for the kitchen about 20 minutes ago and was now leaving the terrace, it was funny how she seemed to materialize in other places all of a sudden.