I don't believe that suicide is a sin. I believe it's death due to sickness, the sickness of the mind. They need to be cured not to be treated like sinner.
Damn that explanation made it all clear. That shows the difference between a common reader to the one who really reads. Author is a genius too damn. I like how the author did the plot and after reading the explanation I understand what the author's trying to convey.
I think the author made this kind of story on purpose to make readers angry, to create every character to be hated that they can't even stop reading until the story reached conclusion.
Geniuses do act like that in mangas. Don't know in real life. They don't really care what other people thinks and they do what they gotta do. And the other people say about MC is right imo