It gets pretty violent in the latest arc (Chimera Ant), but at the end of this I never thought would actually be sad to see the main villain die, haha. It's a pretty interesting shounen but I won't deny that it gets pretty violent at points. Also, the pacing is pretty weird. Like in the Chimera Ant arc, like 20 episodes had passed and the narrator starts off the episode with "Only 5 minutes later.." like dang, haha.