Shika and her friends are at the peak of their mission. Now it's do or die, there's no turning back. They will need to destroy the mastermind behind the invasion, and Shika already has a few good ideas. If everybody would listen to her, instead of thinking that she was too immature. But even with the promised help from the Spirit Wolves, by the time they arrive, it may already be too late. Hidden behind the castle walls is deception, possible death, destruction, secrets, and a familiar face who could become a friend... or a foe.