Specials, or OVAs, are great for a number of reasons. First, they can work as a means to promote a story or series to encourage viewers, or as a way to conclude a series and offer proper closure with an unsatisfied audience, if any. Second, they may hint at a possible continuation of a series. And third, it always works as an excuse for catering. Whether it be fanservice, or that much requested manga chapter that didn't make it to the "big screen" - there is always room for catering. Or, ultimately, as a means to make more money. But let's put aside these realitiesfor a bit for the sake of this post.

The Sunday Without God Special promotes a total of three mini-episodes which, all together, make it episode 13. So in order to understand the episode, you should probably watch the anime beforehand.

Impressions:
In the spirit of all things great about Specials and OVAs, episode 13's first "mini-episode" offered a lot of fanservice, for the simple sake of fanservice - taking place around the third arc of the anime. Segments two and three catered to an audience who enjoys a little more development. Also taking place in the third arc of the series, it captures Alice recalling an encounter with Hampnie, while the third segment focuses on Hampnie's memory of how he met Hana - most probably taking place during the first arc of the anime. And, although, I don't know why they decided to break the special into three different side stories, they all offer a piece of insight into past occurrences of the series that could be considered worthwhile. Especially the third segment, personally speaking. Which also happens to be the segment that hints more towards a continuation of the story or not.

Could they continue the series? Of course they can! Assuming the anime was a complete success and the manga and light novel it's based on had plenty of material left to work with, then yes. But they can also discontinue the anime altogether, considering the special ended on a good note. Almost conclusively so, in my opinion. But I don't want to spoil you non-viewers of the special out there, so I'll leave it at that. In the end, I found something worth my time and whether you will or not is up to you to find out.

For a full review, visit this page: http://celybellyns.wordpress.com/2014/02/23/sunday-without-god-special-episode-13/