(Image not mine! Credits to the original creator)
Y/N was just walking through the forest, enjoying a nice breeze on a lovely day in Gravity Falls, when someone jumps them in the woods. A mysterious man comes to their rescue, taking them in and patching them up. But why would this man be so kind?
Bill Cipher 'died' over a year ago, but those who wander far into the forest realise a house that was never there before. It turns out this house belongs to the dream demon, created using some of the magic he had left after his defeat. Contrary to the public belief, Bill is fine with his defeat. It released him from being power hungry, and now he is free. That's all he ever wanted. So, now, he lives calmly in the forest. But after a while he starts to feel a bit lonely, with the creatures he was so familiar with becoming his only friends. That is, until a certain person needs his help.