Yukito Yanagi, a young orphan with a mysterious past, embarks on a life-changing journey when he crosses paths with a peculiar disciple of his late father. This enigmatic figure whisks Yukito away to Ayakajima, a fantastical archipelago shrouded in legend and mystery. Among the seven islands that make up Ayakajima, Yukito discovers the existence of ethereal beings known as "Mitama" and powerful dragons that roam the skies. Upon his arrival, Yukito is introduced to his father's two other disciples, each tasked with safeguarding the delicate balance and harmony of Ayakajima. As Yukito delves deeper into the secrets of the islands, he uncovers a looming threat that jeopardizes the very essence of Ayakajima's existence. With the fate of the islands hanging in the balance, Yukito must unravel the mysteries of his lineage and harness his newfound powers to prevent disaster and preserve the legacy of his father's teachings.