Marvelous updated the official website of the Fate/EXTELLA and released a new promotion video. The video introducing the basic story of the game which will be available from November 10, 2016 in Japan on PlayStation 4 and PlayStation Vita.
You can watch the video above, which is 2 minutes long (little bit more) and some of the main characters appears in it but mostly you can read the behind story in Japanese. Anyway, if you are interested in the game watch it now! Less than 2 weeks left and the game release.