Dolls

Background
"Dolls" is originally sung by Hatsune Miku by Rozenkreuz-P, however, not too long after, the originalwas removed from Nico Nico Douga; no YouTube reprint of the original song can be found either.

In a similar case to Migikata no Cho; "Dolls" is an original song by Kagamine Rin. It too used to be an original song by Hatsune Miku, until it was removed by Rozenkreuz-P.

A doll with a living mind inside of her wonders why she was born and why her heart is made of silver after her creator passes away. For many years she sings, dances and hopes that one day she could go to 'that place' where her creator has gone. After many years, she attempts to 'go' to that place with her body which was almost broken and she finally sees the creator she lost so long ago.