You are going to Watch Big O Episode 16 English dubbed online free episodes with HQ / high quality. Stream Anime Big O Episode 16 Online English dub Day of the Advent. A mysterious object shrouded in light has crash-landed in the City of Amnesia. Like a thief in the night, a Paradigm investigation team recovered it before too long. Now the locals hire Roger to negotiate with Paradigm to hand it over, pinning their hopes that it is an Angel of Salvation. Can Big O stop the rest of them from causing Armageddon?