Artwork of Sara Altney and the Djinn from Yuukyuu no Kaze Densetsu: Final Fantasy III Yori. Roughly translated as Legend of the Eternal Wind: Final Fantasy III, the manga is an adaptation of Final Fantasy III starring four named protagonists; Muuchi, Doug, J. Bowie, and the sole female, Melfi. The manga considerably predates the DS release of the game which introduced Luneth, Arc, Ingus and Refia, and also follows a different plot, omitting the Cloud of Darkness in favor of an unnamed demon, and though it is depicted with the Guardians of the Dark Crystals accompanying it, they do not appear to be unique entities.
In the game, the Djinn curses the village of Kazus and Castle Sasune, turning the villagers into ghosts. The only way to break the curse is with a Mythril Ring, which can banish the Djinn. Sara possesses such a ring, and the Warriors of Light meet her in the Sealed Cave where she has gone to find the Djinn. Unfortunately the Djinn has been infused with the power of darkness and is immune to the ring’s power, forcing the Warriors of Light to fight him, and afterwards the weakened Djinn is banished. In the DS version, after the Djinn’s defeat the Wind Crystal teleports the party to the Crystal Chamber in the Altar Cave and grants them their first Jobs.