Fuyuoni is a member of the Nokizaru clan who is close to Kenshin.
Not much is known about Fuyuoni but he is extremely loyal to Kenshin and a little hasty and reckless.
Ginga Densetsu Weed: Orion
Fuyuoni is a member of the Nokizaru clan working closely with Kenshin and Unsai. He remains by their side for the events
Ginga: The Last Wars
Fuyuoni follows Kenshin into battle when bears take over Ou. He is very loyal and remains by Kenshin's side, but when he comes across some bears, he attacks them against orders. Luckily, he is saved by the arrival of Unsai.
Then, Fuyuoni and Hiromitsu's bodies are taken away for burial by Sirius and his comrades.