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.
The same goes for all of the drama and emotion that gets poured into the moment that Kiri almost cuts another girl's hair. The mount of drama they put into that would make you think he's about to be violated—WHEN HE'S JUST GOING TO CUT HER HAIR.
Les Yay: Loads of it between the Byoinzaka twins whenever the Author sister needs to relieve herself of her desire to use Injection of Coma Death.
Moe: Iwai is an adorably petite girl with Cute Little Fangs, beautiful long hair and big blue eyes. It's hard for people to not feel an urge to hug and protect her.
So Bad, It's Good: The anime adaptation suffers from the usual problems of adapting manga (i.e. the difficulty of making it showing, not telling). On top of it, there is serious lack of directing, resulting in rather sub-par... everything.