Sai Tonarine is a Fanmade Vocaloid. She wears almost the same exact clothes as Miku Hatsune only it is pink and instead of wearing a skirt she wears spandex pants. She is a tall girl with long curly pink hair. She has red eyes and light/pale skin.
Sai Tonarine is said to always be singing in her bed room but she sings too loud and disturbs the neighbors. Sai's name means "be quiet". Sai is sung by a human, then the voice is modified to sound like a Vocaloid. She is the 101th Vocaloid.