After breaking up with Beautiful Loser, Sanchez went on a trip to Paris, where he began writing a story, initially referred to as "The Bag.On.Line Adventures of Coheed and Cambria", named after a store near where Sanchez stayed while in Paris. Two characters named Coheed and Cambria Kilgannon live in a fictional foreign galaxy known as Heaven's Fence. In the original concept, Sanchez wrote a story about his girlfriend and himself traveling to a new, foreign place, but as the concept expanded the characters started to resemble his parents.