Save the Players!

[Jinrya-Geki]

The NPC would have to be a purely rewarding task. Where as the Player that is jailed is supposed to be a punishment for not being ready.

NPC jailed reward-
1. Time Extension- How could it work, possibly more npcs are jailed and need to be freed. So you are given extra time to find them.

2. Gil Reward/Item reward- Random reward where the jailed npc offers you either gil or an item such as a potion.

3. OOhhhhhhh just though of this. By helping an Jailed NPC, they could help out by making a trap for the boss NMs in the stronghold. When engaged the boss has a minute paralyze, or amnesia effect.