After a lifetime as the supreme dark leader, he’s reborn into the one place he despises: the righteous Mudang Clan. Now a lowly disciple, he vows to destroy his old rivals by becoming their greatest student and rotting the clan from within. But his ruthless demonic genius is mistaken for audacious talent. The more he schemes to corrupt them, the more his new clan adores him. He came to be their downfall, but what if he's destined to become their savior instead?