The official website for TV anime Sin: Nanatsu no Taizai has announced that there will be unaired episodes included in each volumes starting from thirteenth episode.
Sin: Nanatsu no Taizai is Hobby Japan’s multimedia project animated by Artland and TNK.
The TV anime started airing today, and a short anime series title…
For example, first volume, which includes episode 13, will be released on June 28, while seventh and final volume, which includes episode 19, will be released on December 20.