As autumn sets in, Ryukyu LAG is caught up in the excitement of the school festival. The Riders practice for their first live concert and work to promote it. Akira and Hako strengthen their friendship. LAG gets an unusual visitor.

A powerful Nightfly O'Note attack on Ryukyu LAG headquarters leaves the Scar-red Riders in a precarious position. Hijiri begs Epiphone to undergo resonance with him so that he can protect Akira.

The Riders, the Substances, and Akira enjoy themselves while preparing for a Christmas party. Troubled by past memories, Hako suffers an identity crisis. A major conspiracy within the government goes into action.