Kogoro KATSURA (later Takayoshi KIDO) should have been there too, but he arrived earlier and then went back to the base to wait a while. His life had been spared because the incident occurred before he came back.
本来ならば桂小五郎（後の木戸孝允）もその場にいたはずだったが、到着が早すぎたので一度本拠地にもどり時間を待っている間に事件が起こってしまい難を逃れている。