Tokyo: The Last Megalopolis narrative moves to 1923, Tokyo. Kato retreats to Dalian, China and he and his followers use magic to cause artificial earthquake waves that are amplified to Japan. Kato returns to Tokyo to awaken Masakado's spirit by himself, but is interrupted by Koda Rohan and Junichi Narutaki, who use Kimon Tonkou magic against him. Kato fails to awaken Masakado, but manages to stimulate the Great Kanto Earthquake. The setting moves to 1927. Torahiko Terada has been appointed by Noritsugu Hayakawa as manager of the construction of Japan's first Tokyo Metro Ginza Line. Hayakawa's construction workers run into Kato's shikigami provoking Terada
1923 Great Kantō earthquake in Yokosuka in compliance with the Washington Naval Treaty of 1922. The earthquake damaged the "Amagi" beyond repair, leading it to be scrapped, and the unfinished fast battleship "Kaga" was converted into an aircraft carrier in its place. In contrast to London, where typhoid fever had been steadily declining since the 1870s, the rate in Tokyo remained high, more so in the upper-class residential northern and western districts than in the densely populated working-class eastern district. An explanation is the decline of waste disposal, which became particularly serious in the northern and western districts when traditional methods of waste disposal