[@Stern Algorithm]
As they spoke, Kanako noticed that the strong wind blowing around them suddenly died down. Perhaps this was due to Miss Catherine's power? She imagined doing such a thing would be easy for an experienced wind elementalist like her.

"Y-yes, right away!" Kanako replied to Catherine's request. She didn't expect she would be asked to demonstrate her strength first before beginning their lessons. Well, she just have to calm down and do her best.

Kanako took a deep breath and spread her legs apart a little. She began with something simple. Taking care on facing away from Catherine, she gathered the wind around her before blowing them all to the empty space in front of her. After that, she gathered the winds around her once more but this time she blew it all around her towards the four directions.

[i]That's it for the strength demonstration... now for finesse...[/i]

Kanako then brought her hands close to her stomach, before manipulating the air around them to create a swirling ball of compressed air inside them. At first, the air density was light, but as she focused, she added more and more air to the ball. As the ball got denser and bigger however, she could feel that she was slowly losing control of the thing. She now thought she would reverse the process, slowly taking air out of the swirling wind ball. However...

"A-aaaaaa, n-nonononono!"

The ball instead spun faster and faster as Kanako panickedly tried to make it die down. In the end, the wind ball exploded right in front of Kanako, sending her flying a few meters away from where she stood.

"Ooowww, that did not go as I expected..." she said to herself as she rose up, after landing on her butt. She always had trouble in controlling the wind in that manner. It seemed she just lacked the finesse necessary.

"So, h-how did I do, Miss?" she asked Catherine eagerly. What the poor girl didn't realize that thanks to her wind ball, she had shredded her own skirt to pieces. Now, she stood in front of a teacher wearing nothing but a pair of pantyhose-covered panties down there.