kio (キオ) is one of the early creators who developed 3-D Miku models. His first 3-D Miku was posted as early as on October 4, 2007 and the high-quality movie inspired other creators. It eventually led to the famous "melody 3D PV", which was supported by kio himself. This creator did not stop with Miku, he has also created other VOCALOID characters and FL-chan. These models are known as "Type Kio" (キオ式).