1.Most of the time, Subaru's action is under Nagatsuki's control. In these weeks, when he watches Subaru's ugly side, he still thinks that " The young is lovely". But then in episode 16, after rejection from Priscilla, Subaru had full of complaints and kept pushing pedestrians' shoulders. The detail is not mentioned in the novel. This is come from the judgement of the staff because they think that is what Subaru would do in that moment. When Nagatsuki watch this scene, he even dislikes Subaru at that time. Therefore, he concludes that everyone watching this show are so strong that they can bear Subaru doing disgusting things.
2.White Whale was mentioned in episode 14. Nagatsuki thinks that if everyone forget it like Subaru, that is great. (PS: Actually the name first appeared in episode 1)
3.When Subaru saw Rem jumping off the car, the BGM sudden stopped with Subaru's conscious.
4.When Subaru and Rem left Crusch's mansion, Rem asked what she needed to do. Subaru answered:" No need to do something. It is enough for staying behind me." But this scene is cancelled. Actually it can echo with the words from Rem in this episode: "I shall be watching over you from behind."
5."Who is Rem??" from Nagatsuki.
6.Nagatsuki recommends watching the scene where Otto was hit in slow motion. It;s quite ruthless......
7.After the White Whale appeared again, Otto dropped the light just for reducing compelling factors.
8.Otto sudden pushed Subaru off the car crazily, not just because of in that scenario, but also other reasons behind.
9.Reading is a common hobby of the twins. Rem likes drama and poetry and Ram only reads magic books.
10."Ram has no younger sister" (ラムに妹なんていないわ). This is a neta from galgame Kanon.
11.Nagatsuki: "Dead body destruction NG