Tremble

Ryu stopped moving his feet. His eyes were closed and the last echoes of the gentle music came to a slow stop. 

The feeling was unlike anything he had ever experienced before. He didn't expect that his Northern Heavenly Wind would have such an ability. 

No, it wasn't quite the ability of the Northern Heavenly Wind, it was his innovation that had allowed it. And without his comprehension ability, Northern Heavenly Wind or not, it would be a pipe dream to find the resonance of the world around her. 

It also had to be remembered that the Northern Heavenly Wind he was referring to was barely an Omniscient Grade treasure right now. Although he had gained a Wind Treasure for his Beyond Perfect Extreme Spiritual Foundation, it was much like the others in that Ryu couldn't use it.