Found 1st May 2016
This is Japans game with gold, you can grab it for free too if you haven't already got it. Either from Your Xbox itself or through the link, change region to Japan, download or Use Chrome (you can use other browsers, I just fine Chrome easier). Open an Incognito Tab. Sign into your account. Click the green button once then again when it loads. It should now be added it your account. On your Xbox One head to Games & Apps > Ready to Install.