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Sai watched unamused, "Well somebody certainly does like to do their homework... But I think you miss stated that last part. Skill and techniques are one in the same I think you mean raw ability, that I do lack but my skill and tatical mind is more then compisates for that little flaw." He said as he unfolded his arms and immediately went to untiying the pouch that held at his side. Unfortunaely for Sai he didn't know as much about Aizen except that he was brought into the mist by Hatari and that he once belonged to the snow country. "So are you going to begin or shall I?" He asked as he tensed and relaxed his body before going into his Tai Chi stance.

Sai eyes quickly darted to everything around Aizen, he diffinately had the upper hand here since he had spent so much time in the lake that he knew where everything was without looking anymore. The Time is now to see how much of a Difference there is! A slight grin spread across his lips as Aizen shouted this out while charging straight for him. The water beneath Sai's feet immediately froze as Aizen rose up into the air and came down backwards with his right arm smashing down onto him. Reacting quickly Sai shifted his weight and grabbed Aizens arm from each side while using Aizen's own momentum against him as he tossed him away from his own body and towards a nearby tree. "Heh, a full out battle?" Sai said tilting his head slightly, "OK!" He said grinning wildly as he charged Aizen, the water around him rapidly moving to speed up his movements.

Sai grinned widely as he skidded to a stop upon the water surface, his eyes and body following Aizen in suit as he flew high into the air. Turning slightly to swing both his arms towards Aizen a stem of water spiraled upwards to attack him but missed as Aizen placed his palm on Sai's shoulder and spun around to kick Sai in his chest. A loud thud sounded through his body as he spiralled backwards on the waters surface, spinning to another stop before recomposing himself. 'He took the first try as an initiative to guess how I react and did a fake out to counter react me... Good, this looks as though this might just be fun.' A wild grin sread across his face as he began to jump from one leg to the next and a did a few quick jabs in the air, "Let's take this to the next level!" Sai shouted as he quickly dropped his body low to the water's surface, rapid ripples began to pick up around him as if a large force of wind was hitting in just that area. All at once Sai charged foreward at Aizen with blinding speed, his body spining as reach right infront of Aizen so that he end up on his side with a fist soaring straight for Aizen's kidneys and a knee spearing into his chest.

Sai quickly back flipped away from Aizen until he was standing at the center of lake looking out at him. The grin slowly faded from his face as he let a calmer side of him take over again, his hand reaching to the pouch at his side and fastened it shut. During the entire time Sai and Aizen were fighting the pouch had been open, he had figured that Aizen might've started the spar with just plan taijutsu and while they were talking and untied the pouch so that the contents would spill out unnoticed while they thought. With each flip, charge, spin, strike, and jump the contents slipped into the lake avoiding both of their knowledge due to the heat of battle.

Sai looked up at Aizen in surprise as he watched more and more swallows of ice form from the lake and charge at Sai, performing two seperate series of hand signs at once Sai charged foreward at Aizen. "Fangs of Lightning!! Hidden Mist Skill!!" Simoustaniously a large bolt of lightning Smashed down onto the Ice Swallows from where they were spouting out of while a heavy fog clung tightly onto the entire lake obscuring Aizen's view of Sai, "Heh, Water versus Snow. So much alike and yet so very, very different! Strong and cold or Unstabile and Versitale! Who wins?" Sai's voice sounded through out the entire lake as if he was talking from everywhere.

Sai smiled slightly, plops of water could be heard through out the entire lake. Something or someone was coming out or into the lake. Sighing he closed his eyes as he listened careully to Aizen talk and move about, 'He wants me to attack... He wants me to come close enough for him to track me... Fine but it wont be as easy as you think Aizen.' Sai thought to himself.

Sai's chakra level started heavily rising as they began appearing where ever the the sounds of water came from and that was over 60 locations throughout the lake, to be exact 63. Every second his chakra would appear somewhere before dissappearing again to reappear somewhere else at a rapid pace, until finally his chakra was everywhere the entire time. "Freedom is what drives me!" Sai shouted as his complete chakra signature dissappeared all together. A cold breeze searing through the mist as the fog slowly lightened up.

Aizen was competely surround by 63 small metalic marbles that were floating eerily in the air. Slowly one of the marbles floated to Aizen, lopping up and down as it did before stopping right infront of Aizen. "BOO!" Sai shouted as he blurred in right behind the marble and fist of ice flying straight towards Aizen's face.

Sai sighed as a bored look came over his face, the fist of ice cracking a falling away into the lake, "Come on Aizen! Give me a challenage!" He shouted as he shook his head sadly before clasping his palm onto his forehead and laughing, all the marbles quickly dropping down into the lake or soaring high into the sky. 'And I thought this would be fun... Ha! Marble Style: Thunder Jumping Technique...' He thought to himself, performing a quick series of hand signs before dissappearing again along with his chakra. Slowly his chakra sign started to show up again, this time it was appearing beneath and above Aizen.