There can be multiple copies of each Party Quest, but each copy can be completed only once.
If you're looking for a 5th copy of Halloween Princess to limit break with, Kill Atalante first in the final wave and check the drop screen (top right). If she doesn't drop the Halloween Princess CE, it may be worth withdrawing and redoing the quest until she does.
NOTE: Rumor has it that this Party Quest has a higher chance of the Halloween Princess CE drop, although the Kazemai drop rate data mine indicates that this quest's drop rate is no better than any of the other Party Quests. Use apples at your own discretion!
|Golden Fruit x1|