|Novel||Light Novel Volume 3|
Masanobu Kōsaka (
Kōsaka is a man in his sixties who wears his hair in a topknot
Kosaka is a hard working and honorable.
Masanobu Kōsaka is skilled in handing domestic and administrative problems.
While Kōsaka is described as being at least sixty in the Light Novels, his real life counterpart died in his early fifties