Oh yeah forgot to tell you, there's also some mystery on the train. For example, later on:
Spoiler!
The conductor will say something about the train rotating for like 4 weeks? It's like it shouldn't be taking so long but he made it that way (i think? I cant understand the translation very well).
So like yeah, it's not just a pure no plot po** story.
So like yeah, it's not just a pure no plot po** story.