Kasen Ibaraki -W5-
Kasen Ibaraki, also known as Ibaraki-Douji, is a powerful oni and the protector of the western gate of Shuten-Douji's domain. She is a closed-mouthed oni, meaning she doesn't speak much, but when she does, it's usually to make a point or to issue a challenge. Kasen is fiercely loyal to Shuten-Douji and will do anything to protect her master's interests.