The Holy Beasts (聖獣, seijuu) are creatures who have made an oath with Aidios to watch over the Sept-Terrion given to mankind. In Trails in the Sky SC, Kevin Graham points out that in one of the scriptures of the Septian Church was written: "And the Goddess, having bequeathed Her treasures, sent forth the Holy Beasts to observe the path the children of Men would take."

At present, three Holy Beasts are known.

List of Holy Beasts