I found out about it because of a gif image of the anime that got my attention.
Many seemed to like the manga and were disappointed in the anime aesthetics. Actually it was more like raging over it. The manga hadn't finished then but I think it has by now.
Aku no hana is a dark twisted high school psychological tale. A normal person makes a mistake but because one person witnessed it he cannot back track from it. You can see a lot of the anguish and the mentality of the teenager years. Just go to MAL or something I am not doing it justice.
I don't know if it is good or bad but the mama sure gives some impact. I am not sure where it is trying to go.
Anyway did you ever read it or considered doing it? If somenthing speed you. What was it?