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 background music used for the Servant quiz at the end of each episode is incredibly catchy. It's first used in the segment after the halfway point of the first episode.
The opening theme for that matter. ~ Ba ba ba ba ba, ba ba ba ba ba, ba ba ba ba ba ba ~
Ho Yay: From the introduction Jyoji appears to have a long term single-sided crush towards Yutaka: he keeps desperately trying to reconnect with Hasebe, is shocked when he finds out he's hitting on Lucy, calls Hasebe cruel for giving him the cold shoulder but can't stand other people saying mean things about him. His behaviour was being outright called as Boys Love by the local Cosplay Otaku Girl Chihaya.
Jerk Sue: Toko. She does nothing but take up employees time with pointless bitching, but she gets away scot free every time.