I decided to make my Adventure Time oc start out in Walnuts & Rain. At the age of 8, Catherine fell down a hole and found herself in the Huge Kingdom (i believe that's what they called it. Or the Food Kingdom?) She took the role of a servant and washed dishes and swept dusty cupboards. Eight years later at the age of 16, she meets Finn during his escape from the kingdom. She asks to go with him, and she is brought back to the surface.