You were the long-lost princess/ prince of Khaenri'ah, you of course remember the prince, your dear brother, Kaeya. But you can not recall memories of your father. One day, while you were out walking, some fatui gaurds came and kidnapped you. When you woke up, you saw two figures standing up, staring down at you sitting.

Kaeya: Look who finally showed up.

He said in a teasing tone while smiling as Pierro just stared with a harsh expression.