|Manga||Witch Craft Works Chapter 4|
|Anime||Witch Craft Works Episode 2|
Touko is a girl of average height but of voluptuous build. Her hair is ice blue and curled at the ends. She has brown eyes.
She is usually clad in her school uniform, though she's also seen in several other outfits, usually her work uniforms from her various part-time jobs.
Touko is a very energetic, polite, and caring girl. Unlike many others who were jealous or spiteful towards Honoka due to his relationship with Ayaka, Touko was very supportive and considerate. She is very fond of Ayaka despite Ayaka's cold attitude towards her.
Touko is the oldest child of the Hio family, a clan of ice witches. Her family is quite large, Touko having eleven younger siblings. Her mother, Mafuyu, works at the Kagari family's main estate. Touko has many part time jobs in order to support her family and also works as an information broker, selling any worthwhile knowledge she's heard for extra money.
A few years prior to the main timeline, Touko and Kanae were appointed by Kazane Kagari to take care of Ayaka Kagari, who at the time was quite socially inept. Letting Kanae oversee Ayaka like a manager, Touko decided to be silent and enjoy it.
Then, Ayaka goes to the male division of Tougetsu Junior High, questioned by Touko and Kanae, yet she said nothing about it and keep peeping for a whole year, and Ayaka finally reacts when she finds "him," yet Touko seemingly didn't realize a thing...
Powers and AbilitiesEdit
Touko is an ice-manipulating witch. Just from a mere touch she can freeze objects. Like Ayaka, she also can manipulate the temperature around her. Interestingly, Touko's power increases in proportion to threat. When she is placed in mortal danger her power skyrockets. In one instance she created a massive cold front that enveloped all of Tougetsu City. 
- Despite of Touko always using her power around Honoka, Honoka is yet to notice her powers.
Character Art DesignsEdit
|Tougetsu Academy Staffs||Kazane Kagari • Kyoichiro Mikage|
|Tougetsu Academy's Representatives||Ayaka Kagari • Rinon Otometachibana • Natsume Mikage • Atori Kuramine • Touko Hio|
|Rothernburg Witches||Lauran • Wine|
|Unaffiliated||Honoka Takamiya • Kasumi Takamiya|