In the late night of June 5, 1864, the Shinsengumi—led by Kondō Isami, Okita Sōji, and Hijikata Toshizō—raided the Ikedaya inn, where loyalist samurai from Chōshū domain were plotting. Several sonnō jōi activists were killed or captured. The incident enraged Chōshū, triggering the Kinmon Incident the following month. It cemented the Shinsengumi's reputation as the shogunate's feared enforcement arm in Kyoto.