Gun Mechanism

Exploration Stage: Angel statue
From: Huntress
Description: The Detective decided to give the City’s Frauleins some ancient weapons for protection while he catches the mugger. But we should first take apart these pistols. We should check whether their antique triggers are intact. Bring me a Nipple Wrench, and I’ll personally check each pistol.
Completed: The Nipple Wrench that you found is perfect for disassembling the pistols. But it seems that the nipples are rusted. This will take longer than I expected.