While this is far off from now, here's a good look at Kotaro in his later days. Practically all grown up here, Kotaro is still as adorable as he's always been. Think of him as being similar to Goku: he's a good kid, but not the sharpest knife in the drawer. He's also had a good portion of his life to master that insane strength of his, thanks to dear old daddy Kentaro's martial arts training. While a skilled fighter, he's not someone who just randomly picks fights. And when he does fight, he holds back a lot to make things more fun and challenging for him. He can still be a bit of a show off in other ways, but not out of arrogance. He just likes that he can make people smile. Though, he's still a bit dense when it comes to girls.