At around the end of May, moderators and observers including Susumu YAMAZAKI and Kai SHIMADA ascertained the presence of Masuya store (Shuntaro FURUTAKA) that was operating a charcoal business in Shijo-Kobashi-Agaru-Shin-cho, and made a report to the Aizu clan.
五月下旬頃、諸士調役兼監察の山崎烝・島田魁らによって四条小橋上ル真町で炭薪商を経営する枡屋（古高俊太郎）の存在を突き止め、会津藩に報告。