Here is the full text content for a subject line and body regarding APK + OBB files.

Note: This information is for educational and informational purposes only. Downloading copyrighted games without purchasing them may violate terms of service. Yu-Gi-Oh! Legacy of the Duelist APK + OBB – Full Installation Guide

If you are looking to install (the full version with card data) on your Android device using an APK and OBB file, follow the steps below.