Gludio Prison Warden:
Enter the dungeon prison and slay the prisoners.

Wipe out all 3 gangs to eradicate the monsters' entire organization in the dungeon.
When you defeat the leader of the last gang, bring me a piece of the monster's rank badge and I will repay you with the Knight's Epaulette, which you can exchange with me for the castle's clan supply.
Ah, one last thing...
The leaders of the monsters are Beautiful Atrielle, Nagen the Tomboy and Jax the Destroyer.
I can grant you access to the dungeon right now.
Good luck!
"Understood. I will start immediately."
"What are the monsters in the dungeon prison like?"