One and million Oni, Arataki Itto X Reader

growing up In the Kamisato clan you're the young cousin of Ayaka Kamisato growing up together within the estate like sisters always playing and going out together but one day when you were a little girl in the city having gotten separated from Ayaka you started to despair but then you happened upon an Oni boy with crimson horns who was being attacked by a group of kids throwing beans at him you went to his defense shielding him from the beans from that moment on Itto came to think of you as his savior becoming fond of you whenever he was attacked you'd come to his Aid always finding him again but one day it seemed like the crimson Oni boy had vanished you didn't hear from him again years had passed you committed yourself to training so you could become not only a noble lady but also a martial artist as to make your Clan proud and you accomplished becoming a close pupil to the Raiden Shogun upon wandering in the city one day you'd caught wind that a certain Crimson Oni had returned.

all Characters belong to Mihoyo except for the ones I made up for the story