Picture
Koyuki is cosplaying Meiko of Vocaloid.

MEIKO  is the first Japanese vocaloid and first Japanese female Vocaloid, she utilizes the Vocaloid engine developed by YAMAHA. Her voice is provdied by the Japanese female singer Haigō Meiko (拝郷 メイコ). The illustration was done by Shogo Washizu, who is often called わっしー(Wasshi) and was once a member of Crypton.

PHOTO by Kojima; Please do not steal pictures without permission.

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