It's a crisis in Cephiro, as Umi and Fuu are captured by Cephiro's enemies. Without her sword, Hikaru cannot come to the aid of her friends. Presea weaves a spell, giving Hikaru the chance to revive her sword. However, as she journeys into her own heart to regain the lost weapon, she finds no hope. All that is waiting for her is darkness, despair, and Nova!