Touko Aozaki

Touko Aozaki is a hero appearing in various franchises developed by TYPE-MOON. She initially appeared as the sister of Aoko Aozaki in the publically unreleased novel Mahou Tsukai no Yoru and later made an appearance in Kara no Kyoukai. She is also Alice Kuonji's acquaintance in Mahou Tsukai Yoru.

Early Years
Aoko and Touko's grandfather, the third generation head, raised Touko in the way of the magus in his Workshop on the mountains, while Aoko and her parents lived separately. When Eiri Fumizuka apprenticed under Aozaki clan, he was in a relationship with Touko. She was a student at the Reien Girl's Academy, where she became an acquaintance of Mother Riesbyfe.

However, when the two girls were 18 and 16 respectively, he suddenly changed the position of successor to Aoko, despite Aoko being a formally inferior magus (not counting her ability to "blow things up"). Shocked, Touko killed him right after he passed down the family heritage to her sister. Because of this Touko does not share a particularly good relationship with her sister.

Entering the Mage's Association
When Touko was a teenager, she entered the Clock Tower academy to get her revenge on her sister who stole the rights of the Family Head of Aozaki Clan. She was a student along with Souren Araya and Cornelius Alba, they were a part of the Department of Universal Research. Touko rose to the rank of Master when she was 20 years old.

In her graduation, Touko wanted to earn the title "Blue" but instead she was given title "Red", this caused Cornelius envy and hatred as he wanted the title "Red".

All three were in good terms until they left for their own research. She studied the human body while aiming to recreate the original human body, She stated in Paradox Spiral that she left the research under the belief that modern humans could no longer reach Akasha after becoming too diversified genetically.

Leaving the Mage's Association
Apparently, Touko is getting money from Mage's Association using her sister's name.

She bought Lugh Beowulf and gave him the name "Beowulf." They went on a number of exploits across Europe, and he remained undefeated throughout them. Some involved a train that collects mystic eyes, an ancient giant octopus living in the North Sea, the Bermuda triangle, which leads to another world, and an Elder Title Dead Apostle Ancestor.

Hall of Monastery
In the 90's, she runs a kind of detective agency Garan no Dou (Hall of Monastery) that only engages in cases with supernatural or abnormal elements. She placed a bounded field around the building that houses Garan no Dou that was supposed to make it undetectable via hypnotic suggestions, and made it into her workshop.

It is unknown how she met Azaka Kokutou but Nasu hinted that Tobimaru Tsukiji might be involve in how they met. She later took Azaka as her apprentice and developed the salamander glove to strengthen and better control her ability.

She is shown as a artistic puppet maker and as an occasional designer of buildings, she designed the Ogawa apartment spiral complex.

Appearance
In her original design, she had short blue hair. But her character design changed when Kara no Kyoukai film released.

In the Character Material, her appearance is a school girl with long black hair.

A heavy smoker, she is stated to always have a cigarette between her lips. According to her younger sister Aoko, Touko "looks like an educated mom with spectacles and a cigarette".

In Kara no Kyoukai, she wears a long brown trench coat.

Personality
Touko was originally obsessed with reaching the Akasha which led her to hate her sister. She was also very competitive with Araya, as both were trying to reach the Akasha, but eventually she gave up on it. While giving up on it, she enjoys her daily life with people she cares about. She usually cut ties with people and she realised that she stayed too long with Mikiya, Shiki and Azaka.

Touko can easily change her personality depending on the situation how she views, for example when she first spoke to Mikiya on the phone she had a serious tone to appear important, whereas when she meets Mikiya in person, she seemed nice and friendly.

She is also very loose with money, she buys items with magic properties on impulse which leads her to being broke months at a time.

She is easily roused and lacks patience. For example she hates being called "Dirty Red" and she broke her own rule of constructing a new puppet and went directly to Alba for revenge.