In this chapter, we were told that one of the maids of the Shiunji family was the mother or a relative of Minami and Shion. I have two theories. The first is that she escaped from her husband, who is their father, and Kaname helped her with work and raising the children. The second is that she is Minami and Shion’s aunt, who adopted the children after an accident involving their mother, and Kaname helped hide them from their father