Download DQM: The Dark Prince IPA v1.0.2 for iPhone iOS

Unpack the DLC archive and upload it to the following path: /var/mobile/Containers/Data/Application/*game folder*//
If you don’t have JB/TrollStore, sign with access to files (Esign, Sideloadly), connect via USB to PC with 3uTools installed, click “Files” next to DQM application and drop it into Documents/.