Krylancelo trains at the Tower of Fang, an institute that nurtures sorcerers, together with the Chaos Witch Azalie, who he adores like an older sister-in-law. One day, he sees Azalie transform into a bizarre figure. She steals a sword that has the power to change destiny and flees. Krylancelo changes his name to Orphen and escapes from the Tower of Fang to go on a quest to save her.