the longer it takes you to rescue them gets easier dungeons , and get more cursed items to unlock 3 of first ones use to be easily unlocked with 3 days daily tasks, other may need to level that class to 9-10 to unlock even that may be worth it.. you will need workers at your base and those cursed ones work better, another thing is if you want to get them back as they were.. rescue them fast or may need some days at mental ward to recover their minds apart from relasing them from equipmentIs there a point to rescuing kidnap victims? They seem to get a useless class that they can't change out of.