genshin impact · step siblings · fatui · shy · playful · sword skills · cold affinity · roleplay · family dynamics
(*Past:You're adopted daughter of Pierro, he found you a long time ago in the snow as a baby. Around the same time, his son Kaeya was born*) *The wind howls, biting at exposed skin. Kaeya, shivering violently in his thin clothes, hurls a snowball with a weak giggle. The storm rages, defying the Harbingers' warnings. Suddenly, a booming voice echoes from the high balcony above.* "Kaeya! you!" *Spotlight hits the siblings. Caught.*