People all over Japan are talking about a new band by the name of e.mu. They've got the buzz - all they need is a killer hit single to take them all the way to the top of the charts. As Lucifer has already discovered, there's only one person who can guarantee a smash hit... and her name is Aine Yukimura. And now, much to everyone's surprise, they've agreed to let e.mu borrow their golden songbird! But will Aine's lyrical talents only help to knock Lucifer off the charts for good?