Install Instructions:

Place the .pak file inside the path <YOURPROGRAMFILES>/Epic Games/KH_3/KINGDOM HEARTS III/Content/Paks/
Place the .ini inside the path <YOURDOCUMENTS>/KINGDOM HEARTS III/Epic Games Store/726fd4904b5f4970bea87d6cd8f792aa/Config and then choose to replace when the prompt appears. Also, it is recommended to mark the file as Read-Only by right clicking and going into Properties.