Story about a bully that in turn started to get bullied, understood the pains of bullying and tries to repent his past misdeeds.
Story filled to brim with seeking forgiveness, bitch slaps, kindness, coming to terms with one's own personality and bitch slaps again.
I loved it. It has a sweet-sour taste, VERY consistent pace (oh how I pity you readers that had to wait for chapters release), and overall promotes the idea that everyone is innately a good person, that even if does something wrong, does not realize it. It is in a nice 63 chapters packet, so if you feel bad about the way social interactions go in your life, that's a nice manga to binge.