Konaki Jijii is a fictional character from the anime series GeGeGe no Kitaro, created by Shigeru Mizuki. He is a yokai, or supernatural creature, known for his peculiar ability to turn into stone, increasing in weight when he is picked up, thus crushing those who attempt to carry him. Konaki Jijii is depicted as an elderly figure, often providing wisdom and guidance to the younger yokai and humans he encounters. He plays a supportive role in the series, assisting Kitaro and his friends in their battles against evil yokai and other supernatural threats.