The Asterisk War, Vol. 5 (light novel): Battle for the Crown

Not everyone in the Phoenix fights fair... At long last, Ayato and Julis have reached the final matches of the Phoenix...but Flora Klemm has been kidnapped! Not only that, but Ayato can't use his greatest weapon-or her captors will do their worst. If he and Julis want to rescue their friend and win the tournament, they'll need their wits, allies, and more than a little good luck!