UPDATE! You won't believe it omg!!!
I was able to remove it with... are you ready?
AN ERASER!
At first i tried to rub it off with my thumb and some little gunk started to build up (like those rubbery particles you get when you erase pencil writings) so i was like EUREKA!
Tell me, do you see anything now?
Wow!! The eraser totally got rid of all of it! I'm so happy for you!!