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Otori Kohaku AKAZA VOCALOID4 | Songs Albums Notable Originals

AKAZA (アーカーシャ) is an alternative mascot for the Japanese VOCALOID4 Unity-Chan! software that was released for "Unity with VOCALOID", which is distributed by Unity Technologies Japan and uses the VOCALOID2 engine. She was later released for the VOCALOID4 engine in January 2016, developed and distributed by the YAMAHA corporation.

She is voiced by a Japanese amateur voice actress, Asuka Kakumoto (角元明日香 Kakumoto Asuka).


AKAZA is from a dystopian world hundreds or thousands of years later from Unity's (Kohaku's) era. Long after the death of Otori Kohaku, the world has fallen into disarray where people are tired of creation because of countless negative feedback against each work. AKAZA is sent by a "big guy" to calm the chaotic situation. Her catchphrase is "Don't be afraid to create a work! Don't be afraid to evaluate!"

For the demo song, "HALFALOGUE", AKAZA was used to act as a representative for the VOCALOID vocal of Asuka Kakumoto and acted as a second vocalist alongside Otori Kohaku, who was voiced by Kakumoto herself.

The presence and creation of AKAZA was meant to represent the overlap between Asuka Kakamoto and the Unity-chan! vocal. This is because although they share the same vocal source, they are treated as if they are two different vocalists.[1]


AKAZA comes from a variant of the word Akasha which in Sanskrit means space or sky in traditional Indian cosmology depending on the religion.


Work in Progress


Similar to Kohaku, AKAZA's character is used in a multitude of other forms of content including, but not limited to, video games, 3D models, merchandising, and short films.

AKAZA appears as an antagonist in the short film "unity-chan! - The Phantom Knowledge". She is described as a mysterious girl who appeared in the fictional "Cogen City", seemingly from nowhere. She is noted to have an expression that is "dificult to read", and having a will that is "undeniably strong". In the setting of the film, she appears to be the root cause of recent events in the game's canon. She is voiced by her provider Asuka Kakumoto.[2]

She reprises her antagonist role in the setting of the upcoming 2021 game "COGEN: Sword of Rewind" (COGEN: 大鳥こはくと刻の剣) [3]


For more on VOCALOID relationships, see the FAQ.



External links[]

Language Description Site
Japanese UNITY-CHAN! Official website for Unity-chan Link
Japanese unity-chan!@夏休みなう @UnityChan_PR The official Twitter account for VOCALOID UnityChan. Link
English deviantArt , art and media community Link
Japanese Pixiv , art and media community Link