"Understood." Was all Natori said with a nod before the exercise began. He began first easily avoid the incoming stones, but as the platform grew smalled and the stoned flew faster he had to step up his game. Small grunts and a bit of heavy breathing could likely be heard as he shifted his position needing to take more care so as not to be hit. This was getting pretty challenging. But he wasn't about to lose to Ryu. He took a breath and began to concentrate more moving a bit more fluidly as he dodged. There were a lot, but soon he began to shift his position. How though? Anyone not trained would likely ask, but for Kombei-sensei and Ryu it would be obvious. He had began to focus his chakra into his feet so as to use even the edges and sides of his continuously shrinking pillar. Of course, he couldn't keep this up forever, and he wasn't perfect at it, but for the moment he was doing fairly well. 

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"Surpised? No dear. I've not been surprised since I found myself in the middle of a hot spring stand with nothing but a towel after stepping out of the changing room." Mario chuckled as he thought for a moment. "I did have a towel didn't I?" He questioned as if his young student to be would know the answer. "Quickly!" He suddenly called out seemingly changing the subject that instant before things got out of hand. "Tell me everything you believe you know about controlling your chakra. No about fuinjutsu." He stopped again. "No both!" He laughed whilst taking a seat behind what appeared to be a blank canvas. "Oh and while you do stand still and hold that fruit bowl." He said making it seem like he'd be painting or something of that nature while listening.