Sounds Under The Starless Sky. (LenKu)
Hatsune Miku, the girl who lost her beautiful voice after an accident, is living in a school. This school wasn't like any other school, it makes every child happy until he or she reach the twentieth stage of their lifes.
She was lonely and sad. Her favourite hobby after losing her voice is playing piano. She lived in this school since she was 7 years old, which means after losing her voice. She like to be alone, that's why she's learning in her room in this school.
Kagamine Len, the popular boy in the school. He hates all the girls and don't like to talk to them. He was separated from his older sister, Kagamine Rin. His parents died when he was a little child.
What will happen if the two of them meet each others?