Sung Jinwoo might have been the ultimate solo badass, but his son follows a more ideal path. One where he doesn't take on everything by himself. Instead he will help his allies to become stronger through his shadow equipment. He still maintains authority, as he can take that equipment away at any time. But this is what a proper king should be. Someone who leads allies to victory, not someone who takes everything on by himself.
Sung Jinwoo might have been the ultimate solo badass, but his son follows a more ideal path. One where he doesn't take on everything by himself. Instead he will help his allies to become stronger through his shadow equipment. He still maintains authority, as he can take that equipment away at any time. But this is what a proper king should be. Someone who leads allies to victory, not someone who takes everything on by himself.