Haruka Dōmeki (百目鬼 遥, Dōmeki Haruka) is the deceased grandfather of Dōmeki, and a former Shinto priest who lived in the temple where Doumeki lives, he taught him many of his practices. He died some time ago, but he's mentioned in Doumeki's stories. The reason of his death has not been stated yet. He seems to have taught his grandson various stories about folklore, mythology and religious practices. He kept a great library that is now under Doumeki's care.