Kali is the heiress of the floating continent, and her whole life has been shackled by boundaries - the duty of a member of the royal family, an unwanted engagement to the son of an aristocrat, and the edges of her small world - a floating island above a monster-ridden land where there have been no people for a long time. She is the Eternal flame of hope of the remaining people, wax and wick, burning for the sake of her people, for the sake of the Phoenix they revered, whose magic holds the island in the air. When Kali falls from the island and miraculously survives, she learns that there are still people on earth. To get home, Kali has to trust the monster hunter Griffin, to believe that he will guide her through the world past chimeras, thunder dragons, basilisks and other terrible monsters. But the longer she is on earth, the more dark truth she learns about her home in the sky, the more she wants to burn only for herself.