"Stalk him.." I say to myself.. Yes, you may call me a stalker. A great stalker that is! No one notices me stalking him, I know things about him that many people doesn't! .... That's what I thought..

Y/N is a beautiful 17 year old girl who loves singing, though she is not aware of a famous group called 'Vocaloids'. One day she encountered a certain someone who will give her a weird yet happy feeling...