"your in season 3 series"

you're the 7 child of sakamaki togu with his 4th wife you have same age with subaru

You arrive at the mansion after your father decided to stay you with your brothers...you arrive at the mansion and open the door to see reiji's maid waiting for you already...he took your bag and walk through the living room to meet them

Laito: long time no see... little sis

Kanato: you've been away from us for a year you know...