Dude I've been wondering this shit since I was a kid. Every. Single. Damn. Shit. Coming from japan are kids.   Supreme General of the Elite Royal Armed Forces? 9 years old.   Grizzled, no nonsense experienced war veteran? 12 years old.    Incredibly skilled tactician able to master and destroy strategies that proved themselves for thousands of years? 10 years old.    The guy who just killed the supreme ruler of Hell, who was there for millennia? 16 years old.     Everybody else is around 16. For god's sake, Japan. Make them adults. Make them 18 if you have to, but 20-30 is great, too. It's to the point that I fucking mentally add 5 to 10 years to the characters and say they're in University instead of High School.