Otomachi Una

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.

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

Concept
Her voicebanks' names of "Sugar" and "Spicy", 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, 2 of which are "Sugar" and "Spice".

Her birthday is July 30th.

Etymology
It is likely that her name of "Una" is based on unagi, "eel", in reference to her hat. Literally, the kanji in her family name mean "sound" and "town".

Appearance
Her hat is eel themed. The website words it as "Hat: Ataman Hat (Eel)" referencing the Russian "Ataman style" written in Japanese as "Otaman" (オタマン) of which the hat resembles. As shown in promotional art, its expression changes often matching or complimenting Una's expressions.

Her attire in her Sugar art is based on a marching band outfit, while her outfit in her Spicy art is based on a Japanese school uniform.

Marketing
According to her website, Una would be receiving her own official MMD models, free motion data, and official video materials in the future.