As far as I know it was always intended to be a Anime by Watanabe, manga was released after the anime started and was of only 2 volumes. Anime was their major focus, manga can be thought as additional content.
As far as I know it was always intended to be a Anime by Watanabe, manga was released after the anime started and was of only 2 volumes. Anime was their major focus, manga can be thought as additional content.