Hayato

Breed: Kishu Hayato was born in the Iga territory and was a soldier under the command of Akame. Hayato was not a very brave or impulsive dog, but sacrifices his life when his comrade Tsukikage commits suicide to kill a Koga dog. Hayato lures a Koga into a huge hole full of sharp pikes. Both Hayato and the Koga gets killed on the deadly spears when they fall into the hole. (source: Gingasite.net)