Ruins of Katsu-Saigo press conference

Near JR Tamachi Station, along the Daiichi Keihin, there is a round monument written by Son Yoshinosuke of Saigo Nansu. On March 13 and 14, Keio 4, just before the general attack on Edo Castle, a meeting between Katsu Kaishu and Saigo Takamori was held at the Satsuma residence on both days, and the historic bloodless opening of the castle took place. There seem to be various theories about the location of this important press conference, but it seems that the preliminary meeting on the 13th was held at the Satsuma residence in Takanawa, and the final meeting on the 14th was held at the storehouse in Tamachi, where this monument stands.