/set at the beginning of the arrancar arc before the arrancars appear./

/3rd pov/

It was a regular day in Karakura town. It was peaceful and not a hollow had appeared.

It was a Saturday and all the soul reapers were at Urahara's shop drinking tea and talking about the situation with Aizen.

That was when what seemed like a good day suddenly became a bad one.

A powerful reitsu was suddenly felt outside of the shop. The soul reapers jumped up, grabbing their zanpaktou and heading outside of the shop.

It was an understatement to say that they were surprised with what they found. In front of them was a girl who looked to be around 15. She had long brown hair and pale skin with brown eyes. She was wearing a white soul reaper uniform, similar to the one that Aizen wears, just without the jacket and an ice blue sash. She had a zanpaktou at her side

She was holding her side which seemed to be spewing blood onto her uniform. It looked like she'd been slashed with another's zanpaktou.

"who are you and what are your purposes here?" Hitsugaya asked.

"help me please" she whispered before she fell unconscious. Luckly for her Urahara caught her.

"lets get her inside and someone should go and grab ichigo and the others." Urahara said.

"I go get them" Renji volunteered and off he went to get Ichigo, Rukia and the others.

Urahara put her down on a futon and Tessai proceeded to start healing her side.

Urahara had a look of knowing on his face as he stared at the girl.

"Urahara-san do you know who she is?" Rangiku asked.

He nodded his head and proceeded to say "I do. When I was captain of the 12th she was my third seat. She dissapeard about a decade or so before I was exiled she was a good third seat and a good friend. She even managed to get on friendly terms with Kurotsuki"

At the mention of the current 12th division captain looks of surprise and wonder were passed around between the group. Even Hitsugaya looked a little surprised.

"whats more troubling though is her current uniform and who she is." Urahara said.

"what do you mean 'who she is'?" Ichigo asked as he, Renji, Rukia and the others walked in.

"as I was about to explain she's Aizen's daughter." Urahara said

"what?" was the collective yelp of surprise.

"you mean to tell me that this is Aizens daughter? Then what are we waiting for lets hand her in to soul society. Right Toushiro?" Ichigo asked.

"it captain hitshugaya!" hitsugaya yelled at him.

"and as to your question Ichigo I believe that it would be better to keep her appearance a secret" Urahara said

"what do you mean?" Rukia asked.

Urahara looked over at the girl.

"the only thing she said before collapsing was 'please help me' this leads me to belive that it wasn't another soul reaper who gave her those wounds but one of Aizens group." Urahara said.

"whoa that's a whole new level of evil bastard." Ichigo said.

"the poor thing, having a father like that." Orihime said

"I don't need your pity you know" a voice suddenly piped up.

The girl sat up on the futon. "you know Urahara-san its rude to divulge information about another peson without their permission." She said.

"oh I know I didn't tell them your name I left that bit to you." Urahara replied.

"still doesn't make up for you telling the half of my life story." She replied. She then looked over at everyone else who was there. Her expression changing from one of comfort to one of fear and uncertantiy. "im, uh, Kori Aizen. Please don't kill me." Kori said.

"even if we don't kill you all we know is you could have been sent her by Aizen to spy on us."
Hitsugaya said.

"I understand you may think that way captain. But honestly ive been trying to get out of Huco Mundo since my father trapped me there ages ago. What hes doing is wrong and I don't intend to be on his side for this fight." Kori tells them.

"that's good to hear. But we still have to tell the head-captain about this." Hitsugaya said.

"I figure that that has to happen sooner or later and id honestly rather it be later. Im not exactually up for being interrogated just yet. Give me a week and ill talk to him." Kori said

"very well but until that week is up you must stay here." Hitsugaya said.

"fine by me" she replied "I can catch up on what ive missed."

XOXOXOXOXOXOXOX

Lol I know its no edited I don't have a beta.

I hope you like the beginning heres a profile of the girl.

Name: Kori Aizen

Age: she looks 15 around what Hitsgaya looks.

Link of image I want her to roughly resemble is on my profile down the very bottom.

Sex: obliviously female.

Zanpaktou: Toketsu Yuki - frozen snow

Elemental/kido type. Elements are ice and snow. Kido is stuff similar to bakudo

Release command is melt.

Shikai moves:

Yuki no sakkaku – snow illusion -creates an illusion of the weilder while the weilder disappears as ice bends the light around her to hide her.

Toketsu hashira – frozen pillar - frezzez you in place when a wave of freezing cold snow hits you.

Yuki no nami – snow wave - similar to getsuga tensho it is a wave of ice that looks like snow so the attack seems to be harmless. The ice-snow is exceedingly sharp and cuts on contact. The cuts are shallow but sting like hell.

Bankai moves:

Bankai release is ; melt, toketsu yuki no arashi - melt, storm of frozen snow

Aisuburizado – ice blizzard - a move similar to senbonzakura's shikai where the ice-snow from earlier is manipulated with your hands.

Yuki no ningyo – snow doll - similar to yuki no sakkaku but the figure is made of ice snow which freezes whatever is touching the doll and continues to freeze it until the weilder delivers a blow called Kōri no yōyū-ro which translates to ice melter and proceedes to deal a lot of damage and frees the person still in yuki no ningyo's effects. This attack is sent forward like yuki no nami and is essentially the same the ice now just deals damage and unfreezes the opponent. After yuki no ningyo has been performed the limbs that ended up being frozen will be left numb and suffering from frostbite.

Kori no sutsu – ice suit - creats a thing moving layer of ice-snow around the weilders body. This hardens on contact becoming very durable and stops the damage from almost all attacks. The one drawback of this attack is that as the ice-snow freezes to protect the weilder the cold it gives off can result in frostbite of the weilder unless they have a high cold resistance.

Passive ability:

Toketsu yuki has one passive ability that can be dedly on its own not only to the opponent but to everyone in the room or area.
this ability is that the longer a fight continues in shikai the temperature continues to drop a degree every 30 secondsin bankai it drops 2 degrees ever 30 sec. while this boosts toketsu yuki's attack power as it gets colder it can be troublesome with others in the room.

While this is a passive ability that seemingly has no name it can be turned off but it is automatically put into effect at the release of shikai and bankai.

This passive ability will take the temp down to minus 10 degrees but can be forced lower by the weilder. Tough its advised not to.

Flaw- the one flaw with toketsu yuki is that the weilder needs a high cold resistance which generally makes the weilders body temp stay constantly low.