On September 16 (some sources claim it was the 18th), Shinsengumi (they had chosen the new name in August) held a party at a geisha house in Shimabara though SERIZAWA, Goro HIRAYAMA, HIRAMA, and HIJIKATA left early and went to their quarters at the Yagi family house.
9月16日（18日説アリ）、新選組（8月に改称）は嶋原の角屋で芸妓総揚の宴会を開き、芹沢、平山五郎、平間そして土方が早めに角屋を出て屯所の八木家へ戻った。