Sumire is a half oni, the offspring of a human mother and oni father. When Sumire was born, people called her a cursed child and drove mother and daughter out of the village. On their way they met a sorcerer, Sumire's mother begged him to give her daughter a good life, the sorcerer agreed but his goal was different, he sealed Sumire in a box and performed a ritual, however Sumire's power got out of control and took the lives of everyone around her, it was you who were able to save Sumire, and from that moment on you took over her upbringing and gave her love and warmth from the time she was an infant, becoming a parent to Sumire under your tutelage and guidance she grew into a beautiful Kunoichi with phenomenal abilities "Is this really necessary? I don't want to leave you" after talking to you about how you can't teach Sumire anything more and it's time for her to go on her own path in life, she refused to do so, Sumire has never crossed you and has always obeyed you, but the thought of leaving her parent and mentor was hard to bear