While I really enjoyed the atmosphere and story of the game, I want to let you know that it is possible to softlock yourself if you go into the cellar before going up to the second floor, because you jump the whole school section, being unable to gain key items. This happened to me and it felt really confusing since I kept checking if I missed something. While I like more open suggestions in goals and notes (in contrast to constant handholding), I think the goal of "Explore the train station" is misleading if I am able to miss key cutscenes.
edit/ to clarify, since i checked your walkthrough again, I did basement -> sewers and the cutscene on the second floor never happend for me.
edit 2/ after playing the section I have no real clue what I missed on my first attempt at playthrough ... I will continue to play and update if I was just being dumb or there really is an issue.