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Image by くるくる数字 (Kurukurusuuzi)

Western Name: Gekiyaku
Eastern Name: ゲキヤク
Kana Pronunciation: ゲキヤク

Gender: Female
Age: 16 (She thinks)

Release Date: August 3rd, 2016
Group/Team: 葛と風邪(kuzutokaze)

Official Site

Technical Details

Voiced by: くるくる数字
Managed by: くるくる数字,EmeEma_UTAU

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Voicebank Distribution

Gekiyaku is a feminine vocal, most of her voicebanks are powerful and energetic. All of her libraries can be downloaded from her Character Page. (Voicebanks below are listed from oldest(up) to newest (down).

  • -錠剤-

A tripitch (C4,E4,A3) VCV. Her most default sounding voice, loud and crisp.

  • -粉薬-

A tripitch (A3,C4,F4) CV. A rerecording of her very first voicebank.

  • -点滴-

A fourpitch (G3,C4,F4,A4) VCV. A more powerful, ''excited'', voicebank. Yelling on high octaves.
|OMAKE: An improved oto, as well as a bunch of bonus phonemes is available on the OMAKE page for download here!

  • -偽薬-

A fivepitch (G3,A3,C4,F4,A4) VCV. A very aggressive and loud voicebank. slurry on low octaves, growling at high octaves.

  • -麻酔-

A fourpitch (G#3,C4,F#4,A4) VCV. A 'happy' voicebank. More 'moe' sounding on high octaves.

  • -不安薬-

A fourpitch (G3,B3,G4,C5) VCV. A very diverse voicebank. 'Nervous' sounding on the low octave, slurry on the high octaves.
|OMAKE: A bonus pitch (D5), an improved version of the B3 and G4 pitches, and an improved oto is available for download on the OMAKE page here!

  • -カプセル剤-

A fourpitch (A3,D4,G4,C5) VCV. A quiet, soft, and shy voice. Will sound even more breathy and whispery by adding 'W' to any note.

  • -注射- (rerecorded)

A fivepitch (G4,C4,E4,A4,B4) VCV. VERY whispery, every note has a vocal fry.
Suuzi's note; Sounds best when paired with the -カプセル剤- voicebank.

A fourpitch (A3, C4, E4, A4) VCV. A "fun feeling" voicebank, with traces of laughter in the recordings.

  • -English-

a tripitch (D4,G4,C5) english VCCV voicebank made using CZloid's reclist. She has an accent due to her voicer being Japanese, but it's a significant improvement from Kazehiki-English-.


Gekiyaku also currently has seven official MMD models that are up for download.
They can be downloaded here!.

Terms of Use

R-18 Content Allowed? Permission Not Required
Commercial Use of Voicebank Allowed? Permission Required
Commercial Use of Character Allowed? Permission Required
Do these terms apply to derivative characters/voices? Yes, even to derivatives created without permission
Click here to view the terms of use for this UTAU.
Click here to view commercial license info for this UTAU.

Voice Sample(s)

Character Details



Height: 150cm
Weight: 38.8kg
Likes: Drugs(Medicine)
Hates: God
Birthday: ''Any day would be great!''
Personality: 元気(Energetic/Enthusiastic)

Gekiyaku is a young, teenage, 'Genki' girl, very energetic and slightly crazy. She is excellent at creating drugs (medicine), and enjoys reading. She always carries a family album with her, but none of the pages contain a clear photo, leaving her clueless about her past.

She has a duet partner, Kazehiki.
Gekiyaku had a brother, who died at a very young age. She does not remember his appearance. However, she feels very attached to Kazehiki, who as she believes, reminds her of him. That 'relationship' is very one-sided however, because Gekiyaku is a satanist, while Kazehiki a sworn catholic. Canonically, they aren't anything more than mirror images of one another, however users are free to interpret them as whatever they like.

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Image by くるくる数字

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