Looks like original is here:
http://www.anime-sharing.com/forum/torrents-47/5-%5B121231%5D-%5Bsplush-wave%5D-%E3%83%89%E3%83%A9%E3%82%B4%E3%83%B3%E3%82%A2%E3%82%AB%E3%83%87%E3%83%9F%E3%83%BC-update-1-03-%5Bcomiket-83%5D-%5Bh-game%5D-102678/
From what I can tell, is required to run this update.