Otomo Daihachi

Reju no Otomo Daihachi was a sensei of the Imperial Families. 
== Appearance and Demeanor ==
Daihachi was a small, lean man who was polite and soft-spoken, except when barking orders to the mercenaries he trained. He taught martial arts to Reju Ume, niece and heir of their daimyō, Reju Jikai. In the way of the Reju family, Daihachi believed lessons did not stop when the bokken were put aside, and seized every opportunity to teach Ume. Sins of Regret, p. 14
Reju Daihachi