Iwako 岩子

She is Hakaba/ Ge Ge Ge no Kitarou's mother. She shared her powers with a dying man thereby making him part of the ghost clan when she and her husband came to the surface to find a cure for their illness. She later dies of the illness and is buried by Mizuki. Not long after she is buried, Kitarou comes out of the dirt and is afterwards raised by Mizuki.