After weirdmageddon, on the way back to their parents in California the bus Mable and Dipper were on crashed. The crash killed Mable and caused Dipper to go completely lose his hearing making him deaf with no options to regain his hearing ever again. Over the years he's managed to adapt. Learned sign language, speaks when he signs so he won't lose his voice as well even though he can't hear what he's saying, and he can read lips so he's able to communicate with people even if they don't know ASL. Things seemed to be approaching a new normal until his parents decide to get a divorce and he gets sent back to Gravity Falls while they figure it out. All of a sudden he's back in the one place he's been avoiding from all the trauma it caused him. Back in a place where no one understands him and treats him like he can't do anything for himself. Back with a faimilar demon who has yet again found himself drawn to the young boy.