Shuuji Daikoku runs Brave Entertainment, a talent agency that manages the idol groups THRIVE and Killer King. He's the younger brother of Atsushi Daikoku, though the two seem to get along well despite Shuuji's apparent need to do things on his own terms without leaning on his brother's help.
He's got long black hair pulled back in a ponytail and striking reddish eyes, with an earring in his right ear. Fans often note that he has a playful side—by the end of episode 2, it becomes clear he genuinely cares about the groups under his management, even if he doesn't always show it directly.
Content compiled by AnimeList.moe from publicly available sources.