Hundred are only weapons that can oppose the mysterious life-forms called Savage that are attacking the Earth. So those who desire to become Slayers attend the Little Garden Academy. Now though, Hayato enters into the academy is confused as to why his roommate, Emil Crossford, knows him so well. Not only that, but where does this familiar uncomfortable feeling come from? Also, as soon as he has entered the academy, the strongest slayer in the entire school, Clair Harvey, nicknamed “queen” challenges him to a duel?! The Ultimate School Battle is about to begin!!