King of Scorched Lands

The whole world is reduced to scorched ruins under catastrophic heat. Betrayed and murdered by his girlfriend Emily, the protagonist gets a second life through rebirth. He severs all ties with his former lover, then meets heiress Grace, warrior Catherine and scientist Lucy. Supported by these women, he hoards vital resources, constructs an impenetrable stronghold, and rises to become the supreme ruler of the post-apocalyptic wasteland.