•Trust No One•
Since the portal incident, the trust between Mabel and Dipper had shaken. A lot. The bond had been shattered into bits. Mabel tried to mend it, but instead it caused Dipper to go onto a wrong path. This was not what she wanted. Not at all. She did not want a raging demon-turning brother that may or may not had caused Weirdmaggedon. Things were getting out of hand.
Disclaimer: Alex Hirsch owns Gravity Falls. I do not own the drawing of Dipper on the cover and the photos I've used for the story.
Dipcifica / NO Mabill / Also on fanfiction.net / Might be based on Transcendence AU at the end. Depends on how the story goes