Claire lost her contracted spirit in the fight with the demon spirit, and goes to participate in the contracting ceremony to obtain the military spirit, Glasya-Labola. Kamito heads towards the ceremony, as he's worried that Claire will get herself killed in the battle royale that uses spirits to fight.
Only a pure maiden can have the privilege to contract with a spirit. Priestesses, who can summon spirits from Astral Zero, the world of spirits, and have full command of their power, are called elementalists. Kamito Kazehaya is the only male with this privilege, and due to what happened in the past he comes to Areisha Spirit Academy where priestesses are trained to become elementalists. He is then told that he is to transfer to the school, form a team with priestesses to compete in Blade Dance where the most powerful elementalist is chosen, and win.
