The head geisha and central figure of the okiya. She faces severe debt, endures pressure from her sister to marry for money, suffers police questioning, and loses her house to Ohama's scheme.
Their professional relationship is tied to the survival of the okiya.
Someka is identified as one of the only two geisha left working for Otsuta.
Otsuta oversees Nanako within the struggling geisha lodging house.
Nanako is one of the geisha working in Otsuta's okiya, where Otsuta is the head geisha.
Their family bond is complicated by financial dependence and competing business interests.
Ohama is described as a former geisha sister of Otsuta.
They are mother and daughter sharing the household and facing the same financial crisis.
The plot identifies Katsuyo as Otsuta's daughter, and they live together in the okiya.
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