Main characters do 180 flips in personality in the middle of the story with no good rhyme or reason, which brings the entire second half of the manga down.
What I never understood is why japanese schools, instead of denying bullying ever happens, dont shows everyone they can handle and resolve it well. Would you rather send your kid to a school that is known for fixing bullying, or one that denies it ever happens while you know it does?
Almost all manga that get licensed start over from chapter 1, take forever to catch up to current release, aren't even better quality and no translator will do the raws anymore since its licensed. Seen it happen many many times.