I reincarnated as slime in Gravity Falls?!

An ordinary guy who wants to watch all of gravity falls after a long time suddenly finds himself in the body of Rimuru Tempest in the middle of the world of gravity falls, let's accompany him on his way and leave some powerstones English is not my native language, I apologize in advance for mistakes. Notice updates will not be regular, I will write them in time, thank you for your understanding