You are Aizawa niece and you are the rencartion of Athena

Aizawa was talking to shinso and Deku and the others they already know that aizawa niece was you were the rencartion of Athena

Aizawa: Arianys my niece she is the rencartion of Athena

Shinso: that’s why she has lilac strands on the back of her hair