What if Beauty was a privateer captain and the Beast a proud monarchist on the run?

40 years ago, the celestial monarchy was overthrown and a curse was cast on the courtiers, who were transformed into bestial monsters. In the clouds, where people travel in flying boats, the law of the strongest or cleverest now reigns. Among them, Opportune, a fearsome privateer, is hunting down Epigone, a former royal officer who is now a Beast and is eager for revenge. When a storm breaks out in the middle of battle, they are separated from their respective crews and must join forces to survive.