Weapons that stun the enemy

Exploration Stage: Hidden Row
From: Huntress
Description: That guy the detective is chasing is putting up a good fight against a bunch of werewolves! By the way, those monsters look like they've been hypnotized. They don't run away no matter what I do, and they don't seem to feel any pain when they're attacked. Hey, can you bring me the slingshot I use when I hunt? I can teach you how to use it. I'm going to help him out.
Completed: This slingshot is a simple but reliable weapon. Hold the pachinko firmly and set it down with whatever you have to replace the bullets. And aim at the werewolf's hairy face! Okay, here we go. Pull carefully... yes, now! Bravo! I got him!