Board Thread:General Discussion/@comment-110.33.230.229-20150327050225/@comment-26409128-20160116123530

The preview is probably for the :re manga. It aired around a month after the first manga ended. There was one that summarized all of the events in the prequel. Then there is another with the epilog, where Akira stood in front of a grave and then met a person who introduced himself to her (Sasaki).