magic ink

Exploration Stage: Blooming Quarter
From: Detective
Description: My hunch is always right. The fact that he became expressionless immediately after trying on the masks in this store makes me believe that Ryu is involved in this matter. I want you to work with me to find out what dye he uses to color the masks. I want to find out what ingredients are used!
Completed: That's what I'm talking about, buddy! This dye has a really strange glow to it, don't you think? There must be some magical ingredient in it. I can't believe it myself, but after so many years in this town, it seems I've developed the ability to tell when something is magically imbued. Okay, let's take this one to Martha.