comb

Exploration Stage: Sun Pavilion
From: Lady
Description: This woman asked Giovanni di Fiori to paint something funny. It was to make the painting real. But why? The rest of the letter is as follows. To atone for your sins, you must paint a brush that can scoop even the finest hairs.
Completed: Why would the blackmailer want a "brush" like this? They weren't trying to use it as a comb, were they? Adeline says that brushes like this did not exist at this time. So Di Fiori invented it himself.