The Island of Magmar is one dark forest. Its people are divided into guilds. They know every tree and herb and they know how to survive in a time of enchantment and powerful magic. Until an ambitious and malevolent force conjures a demon: a demon so evil that it can be contained only in the body of a ferocious phoenix that will slay everything it sees, a demon determined to destroy the world. Only one boy can stop it - 12-year-old Bennu, who has seen his mother murdered by the phoenix. With her dying breath, Bennu's mother tells her son of his burden. He must lead the phoenix to the mountain of the Guardian Spirit and beg that spirit's help to overcome it. A terrifying quest in a world of Kitsune, tree spirits and Faceless People, a world in which trusting a friend means risking your life.

A curious Kirae named Yota falls in love with the mysterious new girl in the village, but before he could express his feelings, catastrophe strikes. A malevolent entity whispers into the people's ears and spreads mass hysteria and destruction among the Kirae. Love has to wait as Yota discovers his family's true legacy and it is up to him to banish the abyssal terrors and the cruel scourge of the Void.