Banished by the Empire I Saved

Liam Morrow guarded the frontier for a century, raising a great barrier to protect Drakoria. Betrayed by Empress Seraphina Sterling, he was disgraced and exiled. After his departure, defenses collapsed and demons ravaged the realm. On the day of her wedding, the empire fell. Too late, they repented—while Liam Morrow returned, ascended, and slew the demons with a single sword.