Goro (齩郎 Gorō) is currently speculated to be the vessel that Satan possessed before the Blue Night took place.
Blue Night Investigation arc
After being pulled out of Section 13 by Mephisto, he begins to explain the history of the laboratory to Lewin Light and Ryuji Suguro. He tells them during their experiments to make a suitable vessel for Lucifer, one of the clones was possessed by an initially unknown entity. Eventually they concluded that the entity in question was Satan himself. The Blue Night then took place not long afterwards.
While pouring through all of the laboratory's records, Ryuji finds a missing section of information on a clone named Goro. He immediately tells Lewin as he believes that Goro is the vessel Satan possessed that Mephisto told them about.
- Despite he and his fellow clones having a distinctly number based naming theme, Shiro being Four, Goro being Five, and Rokuro being Six, their names do not contain the kanji for these numbers, instead being homophones with the same pronunciation.
- ↑ Ao no Exorcist Manga: Chapter 86, page 10
- ↑ Ao no Exorcist Manga: Chapter 86, pages 34-36
- ↑ Ao no Exorcist Manga: Chapter 88, pages 22-23