Talk:Overlord Volume 06/@comment-4664737-20160514032034/@comment-27168967-20160518105406

We're not even sure about whether it adds to manga sale overall so I'm not complaining. Do remember we're reading a novel when we're reading Overlord, not an encyclopedia explaining everything that had happened up to this point. So, anything that has no real relevance to the plot at that point in LN is bound to get stuffed in a corner of the author's mind somewhere. There's bound to be some extras that the author want to let out because the LN goes pretty slow right now and the manga is an outlet of sorts. Also, the name Death Spiral is the byproduct of the misunderstanding. There's another name for the ritual; one that exposes the true purpose of the ritual.

There is much extra information in each intermission of the manga; some explaining the martial arts, the hierarchy of the vampires, the ritual I had mentioned previously and some more. Some other extra information can also be found in Drama CDs, art books, special prologue from the BD/DVD bundle. Can you really say that it's a way to promote Overlord manga or the LN? From how I see it, I'm amazed the author didn't get flooded over his head with all the information he had designed for this series alone.