The beautiful clothes of the five ancient scrolls were only available after mod was added, in the sky melting pot of Syracuse, in an obvious box. Mod was added to the box that was not in the original game.
First, make sure that you have installed the clothing MOD, and then make sure that the installation is successful. After that, it depends on whether this dress is forged or not. If it is, it can be forged (provided that you have forgery skills, some clothes are put in dragon armor, so you'd better learn this skill). Some clothes can't be forged and need to be obtained directly by code or MOD.
It is built on a leather frame, which can be found in every blacksmith shop in the sky. Support UNP diagram.