Kadokawa Shoten announced that the sixth limited edition volume of creator Shungiku Nakamura's Sekai-ichi Hatsukoi boys-love manga will come with an anime DVD titled "Episode 12.5" in late September.
The manga already inspired an ongoing Sekai Ichi Hatsukoi television anime series and an earlier original anime DVD that came with the fifth manga volume.
The special episode is sorta like an OVA or mini OVA that lasts 20 minutes.
The limited edition volume will also have an exclusive cover, a DVD jacket illustration by anime character designer Yoko Kikuchi, and a special box. More details will be provided in Kadokawa's Ciel and Très Très magazines.
The main story follows the tension between a newly recruited manga editor (Takashi Kondo) and his tyrannical editor-in-chief (Katsuyuki Konishi) — who happen to share a common past. The media distribution site Crunchyroll has been streaming the anime outside Japan since it premiered in Japan last month.
It's already a hit series since it premiered, because of its quality and premise. The dreamy appeal of the protagonists doesn't help, either ^_^