These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Moral Event Horizon: Kanta and Junko cross this further and further as the series goes on.
Selfish Good, Selfish Evil: Most characters are very much Neutral Selfish, although Kanta seems to have a bit of Selfish Good in him, and Kosuna definitely does, as both care a lot about reputation and never failing a job. at the end of the series, Kanta and Junko are revealed as more like Selfish Evil though.
Too Cool to Live: Kanta looked to be this but he actually joined the government.
Woolseyism: The English dub throws in a lot of fourth-wall breaking humor and also translates the songs into English.