Relation: Miyo's biological mother; first wife of Shinichi Saimori
Sumi came from the Usuba clan and married Shinichi through an arranged marriage. She possessed supernatural abilities, though the specifics of her powers aren't entirely clear from available sources. She's Miyo's birth mother, though their relationship was complicated by circumstances surrounding Miyo's early life.
Content compiled by AnimeList.moe from publicly available sources.
