The elderly head of the Ushiromiya family, and the owner of Rokkenjima.

Kinzo holds his children in contempt, viewing them as vultures ready to feast on his inheritance as soon as he dies (or at least when word of his death spread out). He rarely leaves his exceedingly vast study, which contains various commodities such as a bed, lavatory, and bath. He is also a rabid practitioner of black magic and the occult, his shelves lined with volumes upon volumes of grimoires. One of his most prominent obsessions is Beatrice, a witch he is said to have summoned and contracted for ten tons worth of gold.