The Grandfather of the Family. He was directly responcible for the majority of the wealth of the family, though how is still the question. It is explained family was weathy and very well known between the late 1800's and early 1900's. In the 1923 Kanto Earthquake the family was devistated, lossing there Spinning Mills, a good number of family members, and most of there wealth. Taking what was left, Kinzou used a combination of "Luck and miricals" to rebuild the family wealth and then some within 20 years.
Kinzou says the wealth was given in a deal he made with Beatrice the Golden Witch, in which he would give her his soul in exchange for Wealth and Fame. She gave him 20 tons of gold, and with this he build the family fortune. The belief is that the Gold is hidden somewhere on the island, though many do not buy the story.
In the show, he only has 3 months to live. His children are gathered in an anual Family Reunion, and many of them are discussing how to divide his fortune. He is angry at the situation, and apears to be waiting for Beatrice to return to him.