Nerugui

Nerugui is a male ferret appearing in Naruto the Movie 2: Legend of the Stone of Gelel.

Plot overview
Nerugui is a longtime companion of Kahiko and his clan. He apparently does not take to people unless they are from the royal bloodline of the clan. After meeting Temujin, he decided to stay with him instead of Kahiko. The reason he has lived so long is that he has a small piece of the Stone of Gelel in his mouth. He attacks Haido but is struck down. He later leaves with Temujin to the new land.