Genda and Matsugane have been close friends for over 40 years.
Matsugane appears as a man who sticks to the old yakuza way of valuing reason over sheer force and violence. He also appears to be a caring, kind-hearted and an overall good-natured person, especially towards Yagami and Kaito, whom he consider as sons.
As a patriarch, his benevolent side appears to backfire, as he seems to have difficulty in controlling the family.
He wears a khaki coat over white kimono. Physically, he's on the stocky side. He has a graying beard and a graying hair which appears to be receding.
In a flashback scene, he wears a khaki suit with the Matsugane Family pin on its lapel.