After a volcanic catastrophe a decade ago, Yukito Yanagi has dwelled on the mainland, shunning companionship due to a troubling past event. Following his father's posthumous request, Yukito returns to his birthplace on graduation day. There, he encounters his father's disciples and unravels the supernatural secret of the Ayaka Islands. Inhabited by enigmatic creatures called Mitama, these beings pose a threat when they transform into savage Ara-Mitama by consuming human negativity. Realizing his inherited role as a Ley Master, a wielder of magical-like powers, Yukito embarks on a journey to quell the Ara-Mitama and protect his homeland, embracing his destiny and striving to emulate his father's legacy.