Katsuko Momose

* ChäoS;HEAd
* ChäoS;Child

* Visual Novel
* Anime

* Visual Novel
* Anime

## Appearances

**Visual novels*** *ChäoS;HEAd*
* *ChäoS;HEAd NoAH*
* *ChäoS;Child*

**Animes**

* *ChäoS;HEAd*
* *ChäoS;Child*

**Mangas**

* *ChäoS;HEAd*
* *ChäoS;Child*
* *ChäoS;Child ~Children's Collapse~*

**Light novels**

* *ChäoS;HEAd*

## Voice Actors

**Katsuko Momose** (百瀬 克子, *Momose Katsuko*) is a private detective and the president of the Freesia Credit Bureau detective agency who often helps Yasuji Ban with his investigations. Yua Kusunoki also seeks her help in investigating the New Generation Madness. She proves to be more helpful to the New Gen investigation than Ban’s partner Mamoru Suwa.

## Personality

Momose is always busy with work at her agency and doesn't usually have time to investigate anything she is not paid for. She is, however, willing to make an exception for her old friend Ban, especially if he brings her sweets, which she loves eating. However, despite their friendship, she still harshly criticizes him for things such as being reckless in his investigations and putting his partner Suwa in danger. She is generally nice to other visitors of Freesia, such as Yua Kusunoki and Mamoru Suwa.

## Appearence

Momose is a stout woman with brown hair. She wears a white shirt with a black bowtie and a dark blue skirt.

## Plot

### ChäoS;HEAd (*Main article: ChäoS;HEAd\_NoAH/Plot)*

In the Sena route of *ChäoS;HEAd NoAH*, it is revealed that Momose is actually a Debugger/Surveillant for the Committee of 300 and in the NoAH guidebook it is suggested that she was the one who contacted Takumi Nishijou and the others through chat in the Sena route. She is the only character in *ChäoS;HEAd* who is actually loyal to the Committee, as the leaders of N.O.Z.O.M.I., the Cosmic Church of the Divine Light, and the Meiwa Party all rebelled against the Committee, and Gen'ichi Norose in particular was a threat who needed to be stopped for the Committee to realize its ambitions for the Human Cultivation Project (aka the New World Order).

Throughout the events of *ChäoS;HEAd*, Katsuko Momose works as a Debugger for the Committee of 300, helping them get rid of "errors", i.e. things that go against the Committee's wishes. She actively tries getting rid of traitors like Norose who betrayed the Committee, who also happen to be the antagonists of the main character Takumi and the six Gigalomaniac girls, as well as helping her friend Detective Ban who helped her found her detective agency. This ironically makes her an ally of Takumi and the other teenage Gigalomaniacs despite being a loyal follower of the central antagonist organization for the entire *Science Adventure Series*, the Committee of 300. After Gen'ichi Norose is defeated and Noah II is destroyed, Katsuko's Debugger mission is complete and she returns to Surveillant mode, using her detective agency to gather information, and relaying anything noteworthy she finds out to her superiors in the Committee of 300, no longer actively taking part in events.

At the end of the Sena route, she seemingly decides to adopt the baby that was originally killed as a "cheat code", even though it would have now been considered an error by the Committee due to its alive state.

### ChäoS;Child

Katsuko and her Freesia Credit Bureau return in *ChäoS;Child*, still working as detectives and information brokers with Takeshi Shinjo and Mio Kunosato.

## Etymology

* The name **Katsuko** means "overcome" (克) (**katsu**) and "child" (子) (**ko**).
* Katsuko's surname **Momose** means "hundred" (百) (**momo**) and "swift current, rapids" (瀬) (**se**).