Felmenia Stingray, a brilliant magician renowned for her white fire magic, rises to fame in the Astel Kingdom. As the world faces the threat of the Demon King, court magicians summon two youths to become heroes. When the young man, Yakagi Suimei, refuses to partake in the battle, he is imprisoned for his defiance. Confronting Suimei with her most potent magic rendered useless, Felmenia realizes his superior strength and questions his identity, to which he calmly declares, 'Yakagi Suimei, a magician.'