Touko Hio

Touko Hio (氷尾 凍子) is one of the caretakers of Ayaka Kagari in middle school along with Kanae Hozuki where they helped her to interact with society.

Appearance
Touko is a girl of average height but of voluptuous build with chin-length ice blue hair that is curled at the ends with bangs hanging on either side which exposes her forehead and 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.

Personality
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.

Background
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...

Ayaka Kagari
Touko is very fond of Ayaka, despite Ayaka's cold attitude towards her.

Touko never questions Ayaka directly.

Powers and Abilities
Touko is an ice-manipulating witch where she can freeze objects with just from a mere touch.

Like Ayaka Kagari, Touko 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.

Etymology

 * The name Touko means "freezing, be frozen over, congeal" (凍) (tou) and "child" (子) (ko), which reflects on her ice abilities.
 * Touko's surname Hio means "ice, hail" (氷) (hi) and "tail, ridge" (尾) (o).

Trivia

 * Despite of Touko always using her power around Honoka Takamiya, Honoka is yet to notice her powers.
 * Touko is the former student council vice president until Ayaka Kagari replaced her. After that, Touko became vice-vice president.