The protagonist, Elric Mervinger, is the sole heir to the most prestigious mage family of the continent. He is a prodigy when it comes to understanding magic, but can’t use magic himself, due to a rare disease. After the downfall of his family he was betrayed by the branch families as well as his allies. He vowed to get back at everyone who betrayed him and to rebuild his family. He finds the secret inheritance left by his ancestors that can cure his disease and allows him to ‘swallow’ demons and their magic power. The journey of Elric to become the strongest magician and eliminate all demons begins now!