Mei Terumī

"Manny, We All Dragons Of Kumogakure..All Of Us Stop Nigel And Slient Naga From Ruling Entire World By Their Own Evil Ways You Only One Could Stop Your Master From Destorying Hidden Cloud City"

Mei is the former Mizukage who help Manny to defeat Slient Naga in battle and even as that She have Water Dragon Kekki Genkai mark on her arm also like rest of the Dragon Masters in the Kumogakure that cares for Manny to be a hero

but even also She willing to help Manny and his Gang defeat Nigel which is Manny's former Light clan master of the Kaijudo Dragons council as even that Mei use Tusnami Dragons and Poseidoia Dragons

not when after Hiashi has became the Light civilization duel master even also as the Water Dragon Kekki Genkai, Mei teach Manny the ways of the Water Dragons to attack his enemies in combat and also She duels alongside with her creature was Kindrix the Psionic