Those Who Strive (Inspired by Clair Obscur: Expedition 33)

Lune and Gustave juggle their feelings for each other during the first part of Expedition 33. The canon divergence is that this the real world: Lumiere is a version of Paris that got blasted into the Mediterranean Sea during the Fracture in the early 20th Century. The rest of France is shielded from the outside world by a bubble created by the Paintress's magic.