Umm... wot? For a parody manga, I did not laugh
at all much. I did not care for the characters, the plot was all over the place (historical fiction but set in the future; monsters, UFOS, katanas)... the good stuff is the artwork, which reminded me a little bit of Gokusen. I've read that it is the same with the anime... the first episodes isn't much but you have to persevere to understand the hype.