Hanaoka, Kanryuusai

花丘観柳斉

Isami's grandfather. He handles the housework in Reiko's stead and is an excellent cook.
He is skilled with the spear. He and Kamonojo Serizawa, his childhood friend, have been rivals for a long time.
His true nature was evident from the start, even though he concealed his origins and served as an assistant to the Shinsengumi under the alias Shirozukin.