Wild Storm

"The Roar Of Thunder"

Wild Storm is the one of most powerful sensei in the Temple Senseis so even that He trained Yu to be a Imaginator like her father was which mind of him doing the tasks by seeking his student willing to be an Air Knight

He masters the Air Sword since He was 10 years old which his mother is very well to be enrolled school in Cloudsdale, Wild Storm was able to teach a Imaginators of the Knight Class to battle against evil as so even later Yu was chosen to be a Imaginator of Air Centurions