Husband of Iblis and Step-Father to Sophia and Alice.
While he's known to the public as a Hero, his life is nothing more than that of the "Strongest Bioweapon" meant to slay the Demon King. As a result, he's largely stripped of his human emotions.
After being granted an inhabitable territory by the King of Dilgrand, he defeats the Dragon Queen Iblis, who reigned over the land. She fell in love with him, took on the form of a human woman, and became his wife.
(Source: NamuWiki)
Content compiled by AnimeList.moe from publicly available sources.