Vocal Synthesizer Wiki

Tohoku Kiritan ((とう)(ほく)きりたん) is a Japanese UTAU, VOICEROID+ EX, NEUTRINO, and CeVIO AI character by AH-Software Co. Ltd. in collaboration with SSS LLC.. She is capable of speaking and singing. She was released as a UTAU in June 2015, as a VOICEROID October 2016, as a NEUTRINO in February 2020, and as a CeVIO AI in February 2021.

Her voice provider is Akaneya Himika ((あかね)()()()()).


Tohoku Kiritan is a elementary schooler in fifth-grade.

In 2014, she and her elder sister Itako had a successful campaign to have UTAU voicebanks developed. Later, in mid-April 2016, Kiritan began a campaign to become a VOICEROID.


Her name is inspired by kiritanpo, a pounded rice that is shaped into cylinders like the ones on her back.


Kiritan is rather quiet. She is a hikikomori and doesn't get out much like her sisters. She adores her sister Zunko and one of her dreams is for her to become a idol. Her other dream is to be reunited with Tan-chan.[1]


  • Tohoku Zunko
  • Video games
  • Collecting doujinshi


  • Tohoku Zunko - Older sister
  • Tohoku Itako - Older sister
  • Tan-chan - The spirit of kiritanpo. She is the knives she wears on her back.


Her entry into VOICEROID was similar to Kyomachi Seika's.[2] The campaign was set to run until 18th of May 2016, with a goal of ¥4,500,000 needed. On April 29th, she surpassed this amount.[3]


Tohoku Kiritan
Contrary to her sister Zunko's energetic tone, Kiritan has a calm yet almost emotionless voice.
  • Tohoku Kiritan (UTAU), June 24th, 2015
  • Tohoku Kiritan (VOICEROID+ EX), October 27th, 2016
  • Tohoku Kiritan (Voidol), November 28, 2019
  • AI Kiritan (NEUTRINO), February 21st, 2020
  • Tohoku Kiritan Song Voice (CeVIO AI), February 12, 2021



  • First UTAU to also be released as a VOICEROID.
  • One of the first NEUTRINO released.
  • First VOICEROID, NEUTRINO, and CeVIO established across four different synthesizer programs.


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