After being hurt in battle, Hiro's physical injuries heal, but as he grows more distant from the group, it becomes obvious that some mental wounds still remain. Akira tries to get the Riders to focus on their teamwork.

To shoot a promotional video for the Scar-red Riders, the group goes to the seaside town of Shonan. While away from their usual fighting, Kazuki tries to write a song, while Takt discovers an unexpected facet to Akira's personality.

Hijiri, a transfer student with a flirty attitude, makes sport of the other Riders. When Hijiri approaches Akira, Yosuke becomes mindful of her. While fighting an enemy with odd motives, Kazuki enacts a surprising plan.