Haninozuka Yorihisa is Mitsukuni and Yasuchika's father. He has a close relationship with Akira Morinozuka, Mori's father. They are the same age, like all shown "pairs" of Morinozuka and Haninozuka men. It's implied that their relationship is similar to Mori and Honey's, and Satoshi and Chika's. He and Akira often settle their own arguments with food. He is very proud of his son and likes to talk. Honey is capable of beating him in a duel, despite having much less experience in martial arts.