In the manhwa, it often depends on the context and the specific story. Sometimes it could be the pirates themselves, or it might be someone they've taken hostage or a wealthy merchant they've targeted.
It's not always straightforward. Sometimes an external benefactor or a sponsor might foot the bill if there's some underlying motive or deal. Or it could be that the pirates have saved up resources specifically for such feasts.
In most cases, it depends on the specific storyline and setting of the manhwa. Sometimes it could be the pirates themselves, or maybe an external party involved in their activities.
It's hard to say for sure. Sometimes a wealthy benefactor or ally of the pirates might foot the bill. Other times, they might rely on their ill-gotten gains or even force someone else to pay under threat.
It's hard to say exactly. It depends on the specific plot and events in the manga. Sometimes it could be during a celebration or after a successful raid.