Yamaoka

was a vassal of the Land of Fire's daimyō, Ikkyū Madoka.

Background
At some point, Shojoji ate Yamaoka's brain while he was alive in order to impersonate his identity.

Personality
From what has been seen, Yamaoka is a dutiful and respectful vassal of the daimyō.

Appearance
Yamaoka was an elderly man with short, light-coloured hair which he wore in a pompadour style while keeping the sides short. He also had dark-coloured eyes framed by half-frame glasses and sports a bushy, well-groomed moustache. He wore a white shirt with an upturned collar and a string being used as a bow-tie, with a dark-coloured tuxedo jacket, a vest, pocket square along with pinstriped pants and simple shoes.