I thought this was a nice little series, it is just a shame that it has now "completed" but it doesn't seem like it should be.
The art is excellent! 10/10, and the characters are amazing aswell, the two main characters Ikushima and Arie have very different personalities - but that is what makes it a great story. Ikushima being someone who no one gets on with, and Arie who is friends to everyone in the school.
Overall i give this 10/10 because i did enjoy it :) however most of volume 4 goes on to a completely different story with different characters - but afterwards it does go back on to Ikushima and Arie