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She was a 16 years old girl.
Hatsune Miku (Japanese: 初音ミク) also called Miku Hatsune (the correct way to call), is a Vocaloid software voicebank developed by Crypton Future Media and its official moe anthropomorphism. Miku's personification has been marketed as a virtual idol and has performed at live concerts onstage as an animated projection (rear cast projection on a specially coated glass screen).
Fun Facts: The name of the character comes from merging the Japanese words for first (初, hatsu), sound (音, ne), and future (ミク, miku[n 1]), thus meaning "the first sound of the future",[3] referring to her position as the first of Crypton's "Character Vocal Series".
Wish this information will help you answer your questions.
an image of Miku Hatsune
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