Assassination classroom where a class of misfits have to try to kill their new teacher - an alien creature able to destroy the earth and that's what he will do if they do not stop him within a year.
As you can already deduce that this is a comedy action anime. After watching the first episode I really liked it, it wasn't super funny or anything but the premise kept me interested throughout the episode and the teacher himself seems to be a nice character. It is hard to say if it is going to keep me interested as the episodes go on but for now it something simple and fun to watch.
I recommend you go and see it for yourself, I have a feeling that if you don't like the first episode you won't really like the whole series and if you do like it then you will probably like all of it.