Sumako Aotsuki

Sumako Aotsuki (蒼月須磨子, Aotsuki Sumako), before marriage Sumako Hizaki (日崎須磨子（ひざき すまこ）), is the mother of Ushio Aotsuki and wife of Shigure Aotsuki. And the third generation keeper of Hakumen no Mono, imprisoning the 9-Tailed Fox with her barrier. During her time as Hakumen's jailer, Sumako had a vision of a son she would have who would be the Chosen Wielder of the Beast Spear. She was allowed two years of freedom, during which she met and married Shigure and had his son. Sadly, she was forced to leave them and return to her sacred duty and never got to be with her son while he grew up.

Sumako eventually met her son and began helping Ushio to defeat Hakumen no Mono once and for all.