Bill Cipher X (Soul / Non-binary) Reader

(Y/n) has recently died but... Instead of heaven and hell they find they are an imaginary friend of a child. As the child gets older and abandons (Y/n) by forgetting them (Y/n) just wanders the woods alone. (Y/n) travels around America and ends up in Gravity Falls, Oregon. As (Y/n) wanders around the woods they come across the statue of Bill Cipher. They find the Mystery Shack and follow the twins around. After some time they get to know the Pines family by observing them. Soon Dipper and Mabel gain the ability to see (Y/n) and they share some information about their past Summers, including Weirdmaggedon. (Y/n) hears about Bill Cipher and pieces the story of Bills downfall together but doesn't say anything. One night Gruncle Stan is wandering around the shack but acts odd... He is possessed by Bill Cipher and can see (Y/n). They get to know each other and even though Bill seems very dark and heartless... (Y/n) takes a liking to Bill and keeps it from Dipper and Mabel.
Does Bill feel the same???
Is he just using (Y/n) to find a way out of Stans body and into his own???
Find out in this tale of...
Bill Cipher X (Soul) Reader!!!

((Btw I'm making the Reader be addressed as They/them. This is my first X Reader... Shout out to my guys, gals, and non-binary pals!!! Remember...
Love is like a flower.
Love is beautiful.
Love is love.
Let people love who they wish.
Love makes you and me happy.
Why take others away?
Love is love...))