Watch on Soap2day. In the 30th year, Nirasaki Den'emon established the Nirasaki Hokkaido Development Company with investment from Sonoi to build railway facilities. However, the endeavor faced criticism for attempting to buy Ainu land at low prices. Tokyo Nippo reporter Toshimasa Matsuzaka, who was actually Nirasaki's son, wants to expose the flawed practices of the company.