Gravity Falls - Biffany Cipher

This is when Giffany and Bill made a deal and end up with a huge mistake just like Bill and Dipper. Bill possessed Giffany's body and try to kill all Giffany's family member included her favorite sister, Melissa. Now Giffany is trying to figure out how to stop the evil triangle before he manages to put a rampage on her family.

Gifany and Bill Cipher (c) Alex Hirsch