From your reviews I see your struggling :) have you read Walk on the water, Third ending, Our future, Hyperventilation, Incidentally Dyed By Spring's Love?
And I myself didn't post a positive review on the Highest Order, but to call mc a sl** is a bit. Did you understand from the plot that he had a disorder? He was well aware of his non righteous behaviors and was looking for a way to cope with it. I mean I didn't really like the story, but that should be the last thing to criticize.
Stressed blessed and manga obsessed.