The Aphrodisiacs are human guardians of the Terro Highlands. Inhabited by half tree half human beings, the sprites need the aid from humans representatives. Also as mediators, the Aphrodisiacs becomes the missing link between the races. The Aphrodisiacs are able to communicate with the sprites who are the Nymph, Sylph, Dryad and Undine because they bear the Listening Rune. Likewise, Badeaux from the Dunan Unification War is also a human guardian for the monsters