|Novel||Naruto: Mission: Protect The Waterfall Village! (novel)|
Ryūrimaru was obedient and loyal towards its summoner, Hisen.
Ryūrimaru was a crimson white catfish that was six times the size of a human man.
Ryūrimaru had the ability to use the Transformation Technique. With Hisen saying, "Dragon God Transform", it transforms into a giant golden dragon.