The fault series has sold over 450,000 units world wide and this is the copy that started it all. This, is the original "fault - milestone one" in package form that we sold at Comikets in Japan. Japanese only. Both this and "fault - milestone two side: above DVD JP" are physical versions of old versions of the game for avid collectors. We'll probably never print these again. If you just want to play the game we suggest you purchase from Steam or GoG becuase those versions are always up to date.