Xerena's Song

Xerena's Song is a keyblade you can only obtain if you beat Xerena in a dance-off. You unlock it at the same time you get the Rockstar Costume Charm. The only time it is unlockable is rihgt before you fly to Holy Arxaith

Appearance
The handle of the keyblade is a book of sheet music that is open. The shaft is made from four music bars, the lines where the notes are located. At the bottom of the shaft, where it meets the handle, a few music notes are pertruding out. At the end of the shaft is a large quarter note that the head becomes the teeth of the keyblade. Where the flag of the note sticks out, the microphone end of a Mytheri meets it. The scythe end of the mytheri also becomes part of the teeth.

Story
In the Concert Hall in Audio City, you can sing and dance to various songs. Xerena is the hardest person to beat in the competitions. After you beat Miku Hatsune, Xerena comes and challenges you. This challenge is only available until you go to Holy Arxaith.