O Kikuchi (菊池央)
O Kikuchi (1847 - June 15, 1868), from the Hirosaki Domain, Mutsu Province, was a member of the Shinsengumi. He was also referred to by other names, Ei, Eigoro, or Tanomu.
He was born as the third son of a feudal retainer of the Hirosaki clan.
He joined the Shinsengumi in 1867, and after he was defeated in the Battle of Toba Fushimi and the Battle of Koshu-Katsunuma during the Boshin War, he went to Aizu via Nagareyama.
Although he performed a feat defeating Taisho (Major Captain) of the New government army in the Battle of Shirakawaguchi, he was killed in this war. He died at the age of 22.