Guardian (Kazuma x Oc)

Completed
"She's dead?" a voice whispered out in shock as her lips trembled from the cold and fear of what comes next.
"Yes, and She has given you guardianship of the child" the strict voice stated as a gasp was heard from the older women.
"She left me as the guardian of Kyo?" The woman asked as her eyes darted around the room as she stood up abruptly.
"Where is he now?" The women asked again as the strict voice simple sighed before they looked up to meet the concerned eyes of the women.
"He is with Kazuma Sohma"

After the death of her sister, Kyo's distant aunt comes to look after him but she soon comes into contact with Kazuma Sohma. How could she split up the man and Kyo so the only solution was to live with Kazuma and Kyo to become the young boy's guardian or does she become a guardian for both of them?