* CompleteMonster: Alex Knöpfer. While some of the HCS members repent their actions or do it for money, he genuinely hates the nations and enjoys torturing them. [[spoiler:When he finds them again after the HCS is disbanded, the first thing he does is find a way to get close enough to kill them all. He then melts the frozen nations, which ''does'' kill them via the many painful poisons in their bodies.]]
* FridgeBrilliance: It might look strange [[ModernStasis how similar the world of the]] [[RetroUniverse 22nd Century is to the present]]. That is until you notice early on that the remaining Nations are still mourning what happened a century earlier (as much as they deny it) and seem to be have strained relationships with one another. Somehow this, as well as [[spoiler:the HCS's activities]] would reflect how politics and society across the planet have stratified if not regressed to the point that ''no one'' could really move on.
* NightmareFuel: The epilogue. [[spoiler:There's a thunderstorm going on, the lights are out, and when Liechtenstein goes into the basement, there are a bunch of missing bodies and the floor is covered in water mixed with blood.]]
* TearJerker: Quite a few.
** [[spoiler:Seychelles]] going LaughingMad, because the thought that [[spoiler:her]] "captors" ''aren't'' going to horrifically experiment on her for once.
** When [[spoiler:the previously-thought dead nations return (France to England and Switzerland to Lichtenstein, among others).]]
** [[spoiler:Prussia getting his memories back and talking about how he spent his entire time imprisoned having no idea if Germany had been captured, or if he'd see his brother again.]]
* TheWoobie: All the nations who are found still alive in the second rescue attempt. The little we see from [[spoiler:Seycehlles's]] point of view, [[spoiler:she]] is completely broken and scared and was left with everyone else to starve to death. Meanwhile, [[spoiler:Belgium]] has panic attacks and all of them have to come to terms with the fact that they all have at least one friend or relative who is dead.
** IronWoobie: All the nations are hurt by their loss, but focus on repairing the damage done.