The characters are really good developed.The animation is awesome. For the sound I don't know nothing,but you know is something that you enjoy and there are girls that have kachan's voice as a crush so it's pretty good. But the story. Is just as any hero movie/cartoon. You have villains vs heroes,And Someone becoming the best hero. You don't get enough enigmas to be really hipped about next episode. That's my opinion at least. But 2nd season is much much better at the story.