Thanks so much for writing about your experience and giving us your bug report. Sorry about the screen resolution bug- due to the time constraints of the jam, we weren't able to test on as wide a variety of PC setups as we'd have liked. We'll be patching the game throughout the month as we find and fix bugs like this.
In the meantime, you can try resetting your install's settings so that the game will launch and run in the same state it initially did- from there we'd recommend you play Fullscreen on a 1920x1080 monitor or in Windowed mode on any larger screen.
You can find Model Employee's local Settings File in:
C:\Users\YOURPCUSERNAME\AppData\LocalLow\Nth Circle\Model Employee\NaninovelData\Saves
If you delete Settings.json, the game should reset all resolution, text, volume and screen size settings upon launch, and you should be able to play normally from there.
Thanks again for taking the time to write about this issue and how our work affected you. Have fun playing!