
Yamanami KeisukeWP (山南敬助?), Class Name Saber (セイバー, Seibā?), is a Saber-class Servant summoned by Ritsuka Fujimaru in the Grand Orders of Fate/Grand Order.
The Servant's True Name is Yamanami KeisukeWP. He was a founding member and vice commander of the Shinsengumi. Yamanami Keisuke was close friends with Okita Souji. He deserted the Shinsengumi for reasons that are still unknown by historians today, leaving KyotoWP to return to EdoWP. Okita was the one who was assigned to capture him, and though she would have let him continue running, he agreed to return to Kyoto and face punishment. The punishment for desertion was seppuku, and Okita was at Yamanami's side when he died.