Touko Aozaki (蒼崎橙子, Aozaki Touko?) appeared initially as the sister of Aoko Aozaki in the publicly unreleased novel Mahou Tsukai no Yoru and made a later appearance in Kara no Kyoukai. She is also an acquaintance of Alice Kuonji in Mahou Tsukai no Yoru.
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".
Touko does not share a particularly good relationship with her sister, yet the causes for this break are unknown. Part of it is probably due to the fact that Aoko, despite being formally inferior magus (not counting her ability to "blow things up"), inherited the title of Family Head of Aozaki Clan.
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 in the along with Souren Araya and Cornelius Alba, they were apart of the Department of Universal Research. In her graduation, Touko wanted to earn the title "Blue" but instead she was given title "red", this cause 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 Kara no Kyoukai Paradox Spiral that she left the research under the belief that modern humans could no longer reach Akasha after becoming too diversified genetically.
Apparently, Touko is getting money from Mage's Association using her sister's name.
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.
Mahou Tsukai no Yoru
She brought 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.
Kara no Kyoukai
In Kara no Kyoukai, she plays as the knowledgeable magus giving insight to the abnormalities situations.
She is shown as a artistic puppet maker and as an occasional designer of buildings.
She runs a kind of detective agency Garan no Dou (伽藍の堂, 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.
Mikiya Kokutou saw her puppets in the muesum and was drawn to them; he sought Touko's workshop and was able to find it, regardless of the bounded field. Because of that, she acknowledged his talent for "finding things" and became his employer.
Touko is referenced in the epilogue of the Heaven's Feel route of Fate/stay night, but she goes unnamed. After Shirou Emiya's body was destroyed, they required a puppet body for him after he was partially restored by the Third Magic. They sold the books at the Matou house to obtain a body left by a famous puppet maker, but it has some problems because it was obtained used. It is still the best one out of all those they tried, so they wish to look for her to obtain one that matches him. They note that it will be hard to find the creator because she is marked with a Sealing Designation and on the run from the Mage's Association.
She's a powerful magus and Touko has 20 Magic Circuits, which was a surprise to the Aozaki clan as the number of Magic Circuits in their line had been dwindling. Due to her formidable power, Mage's Association dubbed her with the color Tou (橙, Orange?), which is close to the three primary colors. She wished to get the color Blue, but that title was taken by her sister Aoko.
She is able to create a Bounded Field around Shiki's hospital room with the help of a rune stone, which prevents the entry of spirits. One Wraith manages to find his way inside of it by possessing a dead corpse.
She is also proficient in using rune-based thaumaturgy.
Touko smokes Dragon Smoke (煙龍?) cigarrettes very frequently. They were made in Taiwan, and they are of poor quality. The maker has since dissapeared, and only one cardbox-ful was ever made by a curious craftsman. They are the second most valuable item in Garan no Dou. She often uses them to write her runes in the air.
The glasses Shiki Tohno wears were originally made by Touko. Her sister Aoko stole them from Touko and made them indestructible.
As a doll-maker, she received a Sealing Designation for creating a doll (body) that was an exact replica of her own body. She's able to reproduce parts of a body that can be used instead of the lost part. While this would be nothing special, she can reproduce the part in such a perfect way that it comes close to the real one. She crafted Ryougi Shiki arm and Shirou Emiya body in Heaven's Feel.
Aoko Puppet (青子人形)
This puppet appeared in Mahou Tsukai no Yoru. Touko crafted it to resemble her little sister, it has 4 arms with a crow mode and a spider mode. It can self-destruct.
Projection Machine (幻燈機械 Gentou kikai)
Created by Touko Aozaki to replace the familiar that was destroyed by her sister.
It appeared in Kara no Kyoukai: Paradox Spiral. A suitcase with a projector installed inside. It shapes Ether Clump in the form of a monstrous cat that cannot be destroyed unless the suitcase is destroyed. It also has the ability to heal Tohko by enveloping her.
Sealed Box (封印の匣 Fuuin no hako)
Another of Touko Aozaki familiars, a black monster with a thousand mouths and thorn-like tentacles stuck inside a box. It drags its victims to inside the box so it can eat them.
- ↑ "Dragon Smoke" (Terms) - The cigarette that Aozaki Touko frequently smoked. Made in Taiwan, and of poor quality. It was not manufactured by a large corporation. The maker had since disappeared, only one cardbox-ful was made by a curious craftsman. The second most valuable item in Garan no Dou.(煙龍（用語） - 蒼崎橙子が愛飲する煙草。台湾製の不味いもので、作った会社はすでになく、物好きな職人がダ ンボール一箱 分だけ作ったというもの。工房・伽藍の堂の備品の中で二番目くらいに価値がある。)
| Main characters: Aoko Aozaki • Alice Kuonji • Soujuurou Shizuki|
Secondary characters: Touko Aozaki • Lugh Beowulf • Tobimaru Tsukiji • Kojika Kumari • Housuke Kinomi • Yuika Suse • Ritsuka Suse • Eiri Fumizuka • Kazuki Yamashiro • Yurihiko Tokitsu • May Riddell Archelot