Ayumi, the gorgeous gun and sword-wielding treasure hunter, sets out on a journey to an ancient island in search of new adventures. While rich in bounty, the island is also filled with the magic of Chaos, being at the same time home to blood thirsty monsters.Go to: http://store.steampowered.com/ and download STEAM client
Click “Install Steam” (from the upper right corner)
Install and start application, login with your Account name and Password (create one if you don’t have).
Please follow these instructions to activate a new retail purchase on Steam:
Launch Steam and log into your Steam account.
Click the Games Menu.
Choose Activate a Product on Steam…
Follow the onscreen instructions to complete the process.
After successful code verification go to the “MY GAMES” tab and start downloading.