This does its job well
it's truly dark and unforgiving setting and cast the main character being torn for being a cold bloodied killer to living a normal life and the the pure evil bullies
I love having just pure evil villains they serve a premise when they are needed they show that their very existence is a blight to everyone and need to be eradicated
Many people dislike its very messed up themes I don't judge a series with them as a I said earlier it can work very well
Even if you think its very torture p0rn ish it does its job well the torture is pretty cathartic to see monsters getting you gotta know what you're looking for type of manga don't make a mistake thinking this is something it isn't this is more up there with those extremely dark shows instead of a typical revenge story what people expected to be and where disappointed I enjoyed it don't let tour expectations color your view on it.