She Banished Me Now She Begs

Roland, the Dragon God, was awakened by dying princess Sera, built her empire, then was banished by her. The Abyss demons broke free; the empire crumbled. She begged him back—he refused. Even with the Demon Lord's power, one dragon word broke her. He left through the World Gate with Queen Mara, leaving Sera a mad warning and the world at peace.