Oedo Kagaku Sosa Hatchobori No Oyu [4] (Takarajimasha Bunko C Ya 6-4 Kono Miss Taisho)

[Machine Translation] One of the main attractions of a newly opened museum, a painting by Katsushika Hokusai, has been suspected of being a forgery. Yuuka Sekiguchi (Oyu), a former office worker leading a double life in Edo and the present day, decides to go to Edo to ask Hokusai directly about the authenticity of the painting to determine its authenticity. However, just as she begins her investigation, a middleman involved in the sale of the painting is found dead. Despite the suspicions of Denzaburo and his colleagues, Oyu pursues the case with the help of modern science and Hokusai's daughter, Aei.

新規オープンする美術館の目玉の一つ、葛飾北斎の肉筆画に贋作疑惑が浮上した。江戸と現代で二重生活を送る元OLの関口優佳=おゆうは、真贋をはっきりさせるため、江戸で直接北斎に尋ねてみることに。しかし、調査を始めた途端、絵の売買にかかわった仲買人が死体で発見された。同心の伝三郎たちから疑惑を持たれながらも、おゆうは現代科学と北斎の娘・阿栄の助けを借り、事件を追いかける。