Hunter x Hunter (2011), Ansatsu Kyoushitsu Recommendations
Teaching underage children to kill things... Underage violence in general. That's always fun. Also, great character designs and unique plotlines. The humour is another bonus.
I'm new in recommending things but I think there are something similar with these two.
[for AnsaKyou, I actually focused on S2]
Different setting, different story and even different concept. But there are a big similarity between these two: Both leave about the same impression to the watchers. The settings and background are not that alike, but you'll find that both are actually alike in terms of what the shows want to present to the watchers, just different on what field of range it takes. [Example: Both are about self development and what life is, just HxH is more to an adventure and friendship (especially Chimera Ant
While the actual Plot might be quite different, the overall atmosphere, fight scenes, and relationship between the main characters (Gon and Killua, Nagisa and Karma) is very similar.
Karma and Killua are VERY similar, both have a sort of "switch" they turn on during a fight, or to scare someone where they seem very bad ass and fangirls everywhere scream.
Nagisa and Gon are not as similar, but have the same "i must protect my friends no matter what" kind of persona.
The animation in both is top notch and fight scenes are more than just "Nakama power" and have brains behind them .