One of Asano's most undervalued works, mainly because it's barely available anywhere.
Close to what he does in the "Isobeyan" bits of Dead Dead Demons DeDeDeDe Destruction, Heroes starts as a parody of convencional kids manga. A bunch of misfit heroes that defeat a Great Darkness. But this isn't a kids manga, this is Inio Asano, so things start, slowly, becoming more dark as you go through the chapters.
There's a double twist in the story: first, the childish hero story that becomes uncomfortably close to home, with cynical characters and real world issues being handled in that weird Fujio Fujiko-esque style. Then, as you think this is just a weird comedy, things become progresivly heavy. By the last chapters is hard to keep reading, and the ending, not spoiling, is in equal parts stupidly comical and sharply depressing.
This is exactly what I expect when I pick an Asano manga, and it's an uncommon piece of art that you should read if you want something to surprise you and disturb you.