Ansatsu kyôshitsu

This show offers a much more unique experience than most of the shonen animes, or shows in general. It is a flurry of different genres, all compiled into a surprisingly good mould. AC has some slice of life elements, comedic moments that fit the situation perfectly, great quality fight scenes and a deep and good character development, which contrasts to the outwardly simplistic plot.

But you have to actually see the show, before you blindly rate it. There was some guy who was complaining about the 'cheesiness' of the show, but what do you expect? It's a show centered around highschool characters, and honestly, AC is deeper than a lot of anime I've seen. There's also a good reason behind the man character's apparent 'girliness', which is very well explained in later episodes.

Season 1 sort of has a lighter feeling around it, and focuses on fun stuff, for lack of better words. Season 2 is a shade darker, with better tension, conflict and much more action.

The best part about this show is the lack of filler, and the fact that the it can match any mood you're feeling with what happens on screen. Overall, currently I name AC as the best comedic anime I've seen, which still retains a serious larger plot.