Seki studied under Moritsugu MARUTA (Kyuzaemon MARUTA)serving for the same family and after mastering the secrets of arts of gunnery of Kasumi school, he was permitted to call his school Seki.
同家中の丸田盛次（丸田九左衛門）に師事して霞流砲術の奥義を極め、関流を称することを許される。