The Fracture in Clair Obscur: Expedition 33 was a cataclysmic event that happened 67 years ago from the time of the game's story. It marks the first sighting of the Paintress, a mysterious deity who emerged from the sea accompanied by a colossal Monolith on which she inscribed the number 100. The Fracture caused the city of Lumière to be severed from the mainland and pulled into the sea, isolating it from the rest of the world. Every year after the Fracture, the Paintress returns to the Monolith to lower the number by 1, and the citizens of the city whose age matches the number painted on the Monolith vanish in a ritual known as the Gommage. This event has led to a series of expeditions, starting with Expedition 0, where volunteers attempt to confront the Paintress and end the curse, but all previous expeditions have vanished without a trace. At the time of the game's events, the Monolith's number is at 33, hence the reference to Expedition 33. The Fracture's origins and the purpose of the Paintress and the Monolith remain mysterious, with the city's survival depending on uncovering these secrets.