But immediately before the implementation of the plan, Furutaka was arrested by the Shinsengumi (a group who guarded Kyoto during the end of Tokugawa Shogunate), and many of the people involved in the scheme were killed or arrested in what was known as the Ikedaya Incident.
しかし、実行寸前で古高が新撰組に捕らえられ、計画に関与していた者の多くが池田屋事件で闘死、もしくは捕縛された。