Otomachi Una

Otomachi Una

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by:@Sven1234

Otomachi Una (音街ウナ) is a Japanese VOCALOID developed by Internet Co., Ltd. in collaboration with MTK Inc. and was released in July 2016 for the VOCALOID4 engine. A speech bank was also released for Talk Ex; a VOICEROID2 version of such talk bank was released in December 2020,[2][3] and a new version for A.I.VOICE2[4] is expected to release in February 2025.[5] In July 2021, she also had a voicebank release in the Voidol engine.

Una was updated to the VOCALOID6 with AI voicebanks in June 2023.[6] A new talk voice database for VOICEPEAK was released in September 2023,[7] an AI voice database version for Synthesizer V Studio was released in November 2024,[8] and an update for the latter to Synthesizer V Studio 2 released in September 2025,[9] all three developed by AH-Software Co. Ltd..

She is voiced by the Japanese voice actress, Aimi Tanaka (田中あいみ; Tanaka Aimi).

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Concept

Una comes with two voicebanks titled "Sugar" and "Spicy". These names, as well as her age of 11, are likely a reference to the old nursery rhyme "What Are Little Boys Made Of?". In the rhyme, little girls are said to be made of 3 things: sugar, spice, and everything nice.

Her birthday is July 30.

Etymology

It is likely that her given name "Una" is based on unagi ("eel") in reference to her hat. The kanji in her surname literally means "sound" (音, oto) and "town" (街, machi).[10]

Appearance

Otomachi Una follows an eel theme. In all of her designs, she wears a hat known as "Ottoman Bō", who changes expressions to match Una.[11] Una is a young girl with bright blue eyes. She has long, electric blue hair pulled into two pigtails that are braided at the tips. She has thick bangs and an ahoge. Her fingernails are painted blue.

Sugar

In Una's Sugar design, her outfit is based on a marching band uniform. Ottoman Bō, her hat, has black pupils, pale-blue eyelashes, pink lips and a white and pink rim, with white pink bows on either side of its head. The same bows are on the tip of Una's braids. She wears a blue sailor suit style shirt with white puffy sleeves, pink stripes and buttons on the cuffs and collar, and a red tie with a gold treble clef tie pin. Around her neck is a gold necklace with a large iridescent whistle pendant. She has see-through detached sleeves stylized after a brass instrument. The breast of her shirt is white with a gold piano key-like pattern and gold trim. Underneath is an apron-style piece that is the same deep blue with gold trim, pleats, buttons, and an alto clef pattern. It is tied behind her in a blue bow. Her white pleated skirt has hot pink stripes with little music notes above it, and see-through ruffly pink fringe. Around her leg is a gold bass clef on a three-bar staff clasp. Her left sock is white and has a hot pink piano key motif, and the right is a plain white crew sock. Her blue sneakers have gold rims, buttons, and soles. They have a gold and light blue iridescent wing attached to the heel. In her left hand, she carries a bow-tipped, iridescent blue and gold trimmed baton with red knotted strings wrapped along the length of the baton.

Spicy

Una's Spicy design is based on a school uniform. For the Spicy design, Ottoman Bō has pink eyelashes, a yellow lightning bolt under its right eye, and two glowing translucent yellow cones on either side of its head, possibly referencing horns. Una's bangs have two streaks of yellow, and the tips of her braids fade from blue to yellow. Instead of bows on her hair ties, she has electric green lightning bolts. Under her left eye is a hot pink eighth note (or quaver note). Una wears a sleeveless white button up shirt with pink stripes on the collar. Over this, is a black suit jacket. The shoulders of the sleeves are unzipped, exposing her shoulders, with the cuffs of her sleeves also unzipped and billowing out up to her forearms. The lapels are dark blue with neon green trim. Her tie is red with a gold lightning bolt tie clip. On the lower bottom of the jacket is an F-hole decoration like that on a violin. Her gloves are black and green, with the thumb and pointer finger cut out. On her right wrist is a black studded bracelet. Her skirt is similar to the Sugar design, but without the music note pattern. A double black belt with neon green stripes and silver studs attaches a translucent electric green half-skirt to the right side of her skirt. Her left thigh-high sock is hot pink with a white piano key design, and her right is mesh and attached to a band around her thigh by a black belt. Her shoes are black, chunky, heeled boots bearing neon green detailing and soles. The folds have rows of silver studs on them. She carries a silver microphone with a lightning bolt emblem and neon green base in her left hand.

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Relations

For more on VOCALOID relationships, see the FAQ.

  • Ottoman Bō - An eel-themed hat that is seen changing expressions to match Una.

History

Marketing

Una's Twitter

A few months after her VOCALOID release, on March 8, 2017, another teaser was uploaded featuring the designs of Sugar and Spicy, along with a hidden third Una design that was yet unrevealed.[12] One week later, the full design was shown, belonging to Otomachi Una Talk.[13] Una Talk (or Talk Ex) ran on the AITalk speech engine.

Since her initial release as a singing and speaking mascot, Una has participated in various collaborations with companies.

On November 11, 2020, Una's VOICEROID2 was revealed, and she released December 11, 2020.[14]

On July 16, 2021, Una was both announced and released for the real-time input engine Voidol.[15]

On her website, Una has a list of downloadable content which includes official MMD models created by kuu_wanko and Rennya, free motion data, and official video materials.[16]

She has an official Twitter and website.

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Voicebanks

Otomachi Una - Sugar

The Sugar vocal was created to give a large number of tones for XSY, especially when combined with "Spicy". It is a cute and sweet sounding young female vocal, an example of voice acting. The Una vocal was fairly beginner friendly and high quality, being one of Internet Co., Ltd.'s highest quality voicebanks. It was one of the largest vocal ranges of VOCALOID5 and few vocals could compete with it, one of the few beating it being the "Spicy" vocal.

Otomachi Una - Spicy

The Spicy vocal was created to give a large number of tones for XSY, especially when combined with "Sugar". It is a strong and energetic sounding young female vocal, an example of voice acting. The Una vocal was fairly beginner friendly and high quality, also being one of Internet Co., Ltd.'s highest quality voicebanks. This voicebank is ideal for rock music and power ballads. Its vocal range was matched by only one other VOCALOID at the time of release.

  • Otomachi Una (VOCALOID4), July 30, 2016

  • AI Otomachi Una (VOCALOID6), June 22, 2023

  • AI Otomachi Una Spicy (Mobile VOCALOID Editor), October 20, 2025

Otomachi Una - Talk

A talk voicebank based on the AITalk text-to-speech engine series.

Otomachi Una - Voidol

This voicebank allows Una to speak in both a natural tone and in real time.

  • Otomachi Una (Voidol), July 15, 2021

AI Otomachi Una - Talk

A talk voice database based on the Syllaflow AI text-to-speech engine.

AI Otomachi Una - SV

An AI singing voice database that, through Cross-lingual Singing Synthesis, allows Una to sing not only in Japanese but also in other languages supported by the Synthesizer V software series.

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