Ah, that’s one of my favorite things! I use it for servant ascension. Do your best, Gudako!

Since you’re asking so earnestly, I’ll give you some insider info! This is one of the few quests where the most expensive event currency (pumpkins) can trade down! So it’s always in your best interest to farm the 40 AP Free Quest, Maid Cat’s Hidden Room: Final Stage!

The recommended audience level is 50, and the toughest enemy is a 156k HP Tamamo Cat. Sometimes it’ll even drop a free Ghost Lantern, Halloween Princess or Maid in Halloween!

If I were you, which I’m not, I would focus on getting all the copies of me, the twinkle candies, and trying to limit break Halloween Princess first.