Amidst the bustling sounds of meal preparations, Haruaki, Aka, and their team return exhausted from an expedition, their injuries evident. As they are tended to, a playful banter between Haruaki and Aka underscores their deep bond. Their dedication is revealed in the intense training sessions they undergo.

Delving into the legends of the Ayaka Islands, the fire dragon emerges as a formidable force known to trigger volcanic eruptions. In the past, the islanders relied on a ritual performed by their master, Yanagi-sensei, to pacify this beast. Yet, faced with an impending eruption and Yanagi-sensei's absence, the responsibility falls upon Haruaki and Aka.

Their attempt to seal the fire dragon is a perilous endeavor. As the dragon's power threatens to shatter their barrier, Aka is injured in a critical moment. Haruaki's instinctive effort to protect him complicates the sealing process. Just as hope fades, Yanagi-sensei intervenes and seals the dragon—but at a devastating personal cost.

The dawn reveals the island scarred by the eruption, but the greatest loss is Yanagi-sensei's departure from this world. This loss creates a rift between Aka and Haruaki, leading to a heated disagreement over their roles as Ley Masters. Their paths diverge.

Years pass, and a stronger Aka, now armed with powerful spells, returns. His reunion with Haruaki is tense, as their unresolved differences from the past resurface. Jingi-san's comforting presence during the eruption becomes evident as he consoles a desperate young islander.