Kazakiri Hyouka

Kazakiri Hyouka (風斬 氷華) is Index's first "friend" in Academy City. She is gentle, quiet and shy. She has a tendency to cry easily. Not much is known about her aside from the fact that she was an overachiever at Kirigaoka Girls' Academy, according to Aisa. She is the materialization of the Imaginary Number District, which technically makes her a pseudo-angel.

Appearance
Hyouka has long dark brown hair and golden coloured eyes. Most of her hair reaches down towards her lower-back, but a part of it is tied off to the side of her head and left hanging down. She wears large glasses that seem to hide her timid looks. She wears a school-designated blazer and skirt, and accenting these is a red necktie. Later in the novels she gains a blue jacket as part of her winter uniform. She also is characterized by her large breasts.

Kazakiri Hyouka Arc

 * Main article:Kazakiri Hyouka Arc

Hyouka is first seen helping Index take her money back from the vending machine. The two start chatting and Hyouka points out that Index clothes stand out too much for her to stay at the school, so the two of them went to change, but suddenly Touma appears at the "right" time. After Index bites him a few times he gets introduced to Hyouka.

Later Himegami Aisa states that she went to the same school as Hyouka, and that she was a top student, but no one ever saw her, so Aisa did some investigation and found out that Hyouka was called Counter Stop and that she is the key of understanding "Imaginary Number District - Five Elements Institution, and that Aisa should be the only transfer student.

Later in the arc it is revealed that this was the first day Hyouka has entered the real world, touched someone, her body was seen by a man and also this was the first day she made friends. So when Sherry Cromwell escapes after trying to kill her and Touma and goes after Index, She decides to help Index and Touma no matter what. She saves Index from being killed by Ellis, Cromwell's golem, and later she is saved by Touma again, who defeats Ellis

Academy City Invasion Arc
She appears again in this arc, first materializing in a crowd, though the Anti-Skill who witnessed this assumed this was a hologram. Later, when Vento of the Front invades Academy City, Crowley activates the "Angel" virus in Last Order to turn her into Fuse=KAZAKIRI to fight her off. She is later set free by Index when she cures Last Order.

Fiamma of the Right and the World War III Arc
Aiwass talks with Kazakiri Hyouka, telling her that Archangel Gabriel, or a better description is 'Misha Kruezhev' due to a mix-up in essence, is going to descend soon and then there will be many innocents dead, and Kazakiri should go and restrain Misha. Aiwass doesn't feel like going himself since that's no fun. Aiwass says himself can control the Misaka Network even without Last Order, since the SISTER clones have agreed to help, and he can expand the AIM field in Academy City all the way into Russia. Kazakiri agrees on one condition, that is for Aiwass to not go after Index. Aiwass replies Index will only be targeted if she interests him. Kazakiri then said if Aiwass does go after Index then she'll stop him, even if it means destroying them both. Aiwass smiled and then called her threat naive, since that statement just might perk his interest.

The battlefront between Russia and Academy City sees Fuse=KAZAKIRI flys past them, holding a sword of light that is filled with her will to fight. From her eyes it can be seen Hyouka in the 'Fuse=KAZAKIRI' mode is conscious and in full control, as opposed to the last time under the programming of the virus.

Kazakiri eventually fights 'Misha Kruezhev' head on, though she cannot defeat Misha. Accelerator cuts into their fight, and after Acqua of the Back drained half of Misha's Telesma the two of them can finally start to wound Misha.

As Fiamma is about to implode the gathered Telesma on the Star of Bethlehem, Kazakiri was forcibly returned to Academy City somehow. Before Kazakiri disappeared she told Accelerator of a way to use Index's song that erased the 'ANGEL' virus from Last Order's brain, and Accelerator is then able to modify the song into a cure for Last Order.

After World War 3 is over, Kazakiri confronted Aiwass; she warned Aiwass that if it continues to toy with humans one day it might be destroyed by them. Aiwass merely replied that if the frail humans can one day reach their level then that would be interesting.

Abilities
Her ability is Counter Stop (正体不明 (カウンターストップ) ). Details about her level are unknown, but it was mentioned that she was among the top psychics at the Kirigaoka Academy for Girls, though the academy ranks the students on their ability's rarity rather than how powerful they are. It is later revealed that she is not a human at all, but instead an amalgamation of the psychic's AIM with a consciousness. The nature of her being leads her to be indestructible, as she can recreate any damage done to her body and lift objects several times her own weight. That said, Touma fears that just like any paranormal phenomenon, she would be instantaneously destroyed regardless if his right hand ever comes in contact with Hyouka, but nevertheless warmly tells her "Even though we may never touch each other, we will always be friends."

While it is unknown if it's unrelated to her ability, she has been shown to be able to interfere with a cellphone signal at will, such as when she blocked the communication between Kamijou Touma's phone and Komoe Sensei's phone when Komoe Sensei called and tried to disclose details about Kazakiri.

When not physically manifested, she exists in a realm she calls 'The City of Shimmers', a warped shadow of Academy City. This place is also called 'District' $$i$$ (or the Imaginary Number District). Aleister Crowley says Kazakiri, along with Last Order and Accelerator are all part of his 'Key' to the completion of Artificial Heaven.

Fuse=KAZAKIRI
ヒューズ ＝ カザキリ is Kazakiri Hyouka in "artificial angel mode". In this mode Hyouka acquires several pin shaped wings, whose total lengths vary from 10 meters to 100 meters, and a halo around 50 centimeters in diameter. On the exterior of the halo are pencil-like rods that appear infinitely, they seem to appear and disappear at a rapid pace. In this form, she is referred to as Fuse=KAZAKIRI. According to Vento of the Front, in Christianity, terms like 'Fuse=KAZAKIRI' bears similar meaning to a 'Fallen Angel' that has turned away from God, and is the most abominable being that can exist.

Fuse=KAZAKIRI is created with the input of a code (virus) in Last Order, which Academy City named 'ANGEL'. When the code is active the SISTER clones are physically immobilized. Later in Volume 20 Aiwass allowed Hyouka to go into this mode without the 'ANGEL' code, by asking the SISTER clones for assistance.

While in this form, Kazakiri has demonstrated she can fire a beam-like attack that can reach up to several tens of Kilometers, and put up a force field around people to protect them from all harm. In volume 20 she can fly at several times the speed of sound, and summon a sword made of pure energy at will, fueled by her determination to help Index.

Toaru Majutsu no Index (PSP game)

 * Main article:Toaru Majutsu no Index (PSP game)

Kazakiri is one of the secret characters within the PSP game, in which she'll fight using the abilities from her Fuse=KAZAKIRI form.

Dengeki Gakuen RPG: Cross of Venus
Aleister Crowley is a hidden boss fight within Cross Venus, and his most powerful attack will involve summoning Fuse=KAZAKIRI and forcing her to rain AIM energy lightings unto the player. (source = http://www.youtube.com/watch?v=cHq17ukuOtg).

Trivia

 * Index refers to Hyouka as "her first friend" in Academy City, as in the first friend that Index made by herself, instead of having been introduced by Touma (such as the cases of Himegami Aisa and Tsuchimikado Maika).
 * She instinctively fears Touma. Tsuchimikado points out to Aleister that this might stem from Hyouka's "fear of dying" when being close to the Imagine Breaker . This is also the basis of her "birth", as if something does not fear death, it cannot comprehend the concept of "being alive".

Quotes
(To Index, about Touma) "...Though he's also the kind of guy who speaks to you with a straight face even when you're naked..."