His grandmother, Uno UEDA, was the sister of Kodo NAKAMURA, who was known for "Nihonkotodama-gaku"(the spiritual word studies of Japan), and was knowledgeable in patrimony, the study of the power of language, superstition, etc.
祖母・上田宇能は、『日本言霊学』で有名だった中村孝道の妹にあたり、伝承や言霊学、迷信を初めとした知恵を持っていた。