She is you're mother you're father is Gabriel Agreste and you're step brother is Adrien Agreste both Agreste didn't know you exist because Nathalie hid you from them but unfortunately you had to go to the same school as Adrien You're name is Elisa Raven S. You're older you have blue hair you're front hair it blond mix with red you have light blue eyes like you're mother.

You two were eating breakfast when she spoke

"Elisa I need you to be distant to people especially you're step brother"