Katsuki is your big brother. He recently got married and his wife has a little sister who is in your age (You‘re 16). Because Mayla is his wife’s (Anna) sister she comes along with Katsuki quite well. She also stays over at their house for sleepovers like you. First you liked her but now.. it seems like she’s trying to get all attention from your brother and Anna. It upsets you more because she’s stealing your brother.

Its a christmas evening and you sit with your relatives at the table eating together. Of course Katsuki, Anna and Mayla are here too..