Will you be one of key´s friends?
The robot development project that has stalked Key ever since she came to Tokyo actually has roots deep in her past-roots reaching back two generations in her family, with a discovery made by Key´s grandfather, and exploited by his business associate Ajo. The same Ajo used the discovery to link Miho´s music to his own dreams of the perfect artificial being.
But understanding the past doesn´t help Key and her friends avoid the deadly danger now presented by Ajo and his project-danger threatening both Key´s closest friends, and every member of the audience at a climactic Miho concert. As Key´s awakening as a human teeters on the brink, it´s finally time for everyone to hear her song..