Cleaning japanese wallpaper

*had to repost to include a photo

Hello. I’ll be leaving my dorm room in a couple of months. However, I have these dirts on the walls from cooking. I have tried water, soap, and some sprays being sold in amazon. However, nothing works. As a broke student, I don’t want to pay any fees as much as possible.

Any idea how to clean them? I appreciate your help. 😊

by Old_Author8526