Strange tools

Exploration Stage: Blooming Quarter
From: Detective
Description: This Ryu guy is more than just a craftsman. Let's find out if he is the one who is making the people of the city wear "expressionless" masks. The residents' behavior changed after they put on the masks at this store. I'd like to see that guy's tools. Can you find it for me?
Completed: These are craftsmen's tools... I've never seen anything like them. Hey, look at this. Instead of blades, they're made of bamboo leaves. And this one has a hook. But the most suspicious one is this one. There's a flame coming out of the handle. Let's take these weird tools to Martha and have her check them out.