Toboe

Toboe is the youngest of the group often acting more like a puppy. Toboe was raised by an elderly woman as a pet. She gave Toboe his silver bracelets. Although she died, Toboe has an affection for humans that none of the other wolves can understand (with the exception of Blue). Toboe looks up to Tsume and usually follows him when the group splits up. He also seems to have the best hearing out of all of them. Toboe seems to be a Red wolf in the series.
(Source: Wikipedia)

Toboe's name means "Howling" in Japanese.