Unmarked spoilers below, as per the Spoilers Off policy
Fridge Brilliance:
- "リラ" from Neko's prequel chapter is a Suspiciously Similar Song to "Lilac for Anabel" from Paff's chapter. Given how Neko and Paff's falling-out was due to issues involving crediting and copyright, it's very likely that these songs were somehow involved.
- In Miku's chapter, the second-to-last song is "Decade" by Dixie Flatline. The song was written for HATSUNE MIKU EXPO 2018 USA & MEXICO, where it was the final song before the encore.
- The idea that an invisible helper (representing the player) coming out of nowhere to help the main cast at the end seems out of left field. Then one realizes that the entire story has been viewed through a collection of recordings archived in the OS as well as iM posts that one can 'like' and share, and several fourth-wall breaking events happened to the game interface. These suggest that the player is an in-universe character all along.
- In Nora's chapter, we get a small taste of what the Eye of Horus can do—and worse, what it was used for. Nora had to look into and give away the locations of several young girls. It can be easily assumed by the client's perverted comments that he found what he was looking for. And Nora was still in single digits when she was forced into this.
- Gets worse when you look at JOE's chapter. Who knows how long the gang had been transporting young girls right under JOE's watch?
- Even worse, considering that Vanessa was hooked up to the Library for 400 years, she definitely saw those horrible things. Probably even more atrocious things as what remained of humanity attempted to recover the internet through Cytus. No wonder she went mad with hatred against humanity.