yamanami_keisuke_(fate)

Fate/Grand Order’s depiction of Yamanami Keisuke, the general-secretary of the Shinsengumi. He was part of the assassination of Serizawa Kamo (fate) and became the organization's second-in-command after Kondou Isami took over until he deserted for unclear reason and committed seppuku once he was detained, after which Hijikata Toshizou (fate) replaced him.