Euphonious Kamuy

Movement: Terrestrial
Summon: Euphonious Kamuy Fife
Music: Sunrise
Patch: 4.4

“

Having sacrificed its life to save his master, this magnificent canine was spared the pull of the Lifestream by the auspice Suzaku and her scarlet flames of rebirth.

Yes, yes, that's the spirit, little wolves... - Disembodied Voice

— In-game description

Euphonious Kamuy is a mount that can be summoned with a Euphonious Kamuy Fife, which has a chance of dropping upon completion of Hells' Kier (Extreme) or can be purchased from Eschina in Rhalgr's Reach for 99 Suzaku Totems.

Collecting this mount alongside with 6 other Kamuy mounts allows you to acquire a Fabled Kamuy Fife through a sidequest A Lone Wolf No More.