1. You need to change locale to Japanese before installing the game.
2. Mount the .mds image file with DAEMON Tools.
3. In the install menu window choose the first option from the top; click next 3 times and wait the installation process to finish; rUGP engine will be installed – you can’t run the game without it.
4. English Patch instructions:
Copy afhook.rpo into /Plugins
Copy afhook.pkg into the main game folder
5. This is a full English translation patch for Haruko Maniax.
It also includes full translations for the three Muv-Luv Radio Mini-Drama ADV side-stories.