Aya’s found out that the guy she was interested in isn’t a guy at all―and she’s also realized that she just can’t keep her cool around Mitsuki! The two haven’t quite put a name on their complex, earnest feelings, but they only grow as the pair continues to bond over the music they love. With their senior year at hand, future plans are coming into question…and Aya’s thrown for a loop when a mysterious woman shows up and wants Mitsuki to go overseas!

The threat of the black sphere still looms over Tokyo. Outside, spectators watch in suspense, unaware of the fierce battles taking place within. Meanwhile, Shy and her remaining team members have finally reached the tower where Utsuro awaits― but now, the angelic Inori guards the path ahead! With the cause of the disturbance mere steps away, can they overcome this new foe and confront Ai’s rival?! The battle for Tokyo approaches its climax!!