Open the .apk with a zip explorer and extract libChowdren.so and libAmazonGamesJni.so from the lib/armeabi-v7a folder. :
Move the two .so files you extracted from the APK into that same ux0:data/not-a-hero folder. File: Not.A.Hero.zip ...
Extract the contents of your (the data files) and copy the entire not-a-hero folder to ux0:data/ . Open the
Install the (game launcher) through VitaDB or the GitHub release page . Game Guides File: Not.A.Hero.zip ...