A man returns home after a thousand-year long struggle, but the respite he hoped for is gone : ‘It’s a fun world.’ In a land that has become a lawless land infested with crime after the upheaval, Lee Seo-joon , a demon god who dreams of a quiet life with his family, moves Mount Tai with a single wave of his hand and slices through the sky with two gestures If his life is not worth it, don’t disturb his peace!