Krylancelo Finrandi and his foster sister Azalea Cait-Sith were once promising students of sorcery, prodigies at the legendary Tower of Fangs, amid a realm of magic and monsters. However, a botched experiment warps Azalea's appearance, locking her in the shape of a dragon. Elders at the Tower, more concerned with their own reputation than with the safety of their students, drive the changed Azalea away and cover up the tragedy. Outraged, Krylancelo goes out on his own, using the moniker "Orphen" and promising to restore Azalea to her former self. Orphen's journey has come to a halt after five years. A serendipitous meeting brings him back into contact with Azalea, but he still has no method of restoring her body. And with a sworn enemy in the form of a horde of sorcerers.