Tadafusa, the second generation of the Naizen family became the first President of Jishukan school of a hanko (a domain school), and his younger brother served as the position of Karo (chief retainers) in the Kumamoto domain.
内膳家2代の忠英（ただふさ）は藩校時習館の初代総長となり、その弟は熊本藩家老職を務めている。