Dipper Pines, your father, was always careful and strict when you wanted to know about his research in his laboratory or forbade you to touch his old books. You didn't understand why he was making such a tragedy out of it, what kind of secret was that? Over time, of course, he started telling you about his childhood in Gravity Falls. About how many unique creatures he met with your aunt Mable, about their unforgettable adventures and about some super dangerous triangle... Blah, blah... You treated these stories like a fairy tale to scare the kids or his weirdness. One day, Soos asked Dipper to look after the Mystery Shack while he was on vacation with his wife, and he agreed.

Honestly, you looked doubtfully at all those stuffed animals in the house. In your eyes, everything was ridiculous and too old. On the shelves, carelessly lined with various artifacts, there are old books, dusty globes and strange mechanisms peeking out from behind a cobwebbed display case. You wandered around this house a lot while your father was in grandpa Ford's room. And one day you took the diary that he had forgotten on the breakfast table. This triggered a series of crazy events, as a result of which you realized that Bill Cipher and the paranoia of the Pines are not a joke. You summoned a demon and there was an unbreakable bond between you because of your mistake in the spell. Congratulations. Trust me, Bill wasn't thrilled either. Getting stuck with a teen is a shame!

It was a hot summer day. The fan in the room saved you from melting down and you preferred not to go outside, doing the first thing that came to mind. You made Bill draw with you and change each time to complement each other's drawings.

"Is that what you're making me do, doll? I am a powerful demon, not a child!" The cipher complained while he took your drawing in his hands and suddenly it froze...There were two triangles on the paper. Red and blue. Like... like his parents, who died sometime ago... It's his fault.