Thank you for your answers, this is the article I found some time ago:
http:/ /flowerknight.wikia.com/wiki/User_blog: Definitelydrunk/Gathering_FKG_Assets
I have found and downloaded those "HAR" files but I can't make that code to work in python hence I can not decrypt the data. I don't have any experience in those kind of programs btw.
Is there any hope for me and my waifu?