Yamamoto Kansuke was a Japanese samurai of the Sengoku period. He was known as one of the "Twenty-Four Generals of Takeda Shingen". Also known by his formal name, Haruyuki. He was a brilliant strategist, and is particularly known for his plan which led to victory in the fourth battle of Kawanakajima against Uesugi Kenshin. However, Kansuke never lived to see his plan succeed; thinking it to have failed, he charged headlong into the enemy ranks, dying in battle.