Oserver Oserver Yuserver Mpserver Hserver Episode 4 Episode 1 Episode 2 Episode 3 Episode 4 Episode 5 Episode 6 Episode 7 Episode 8 Episode 9 Episode 10 Episode 11 Episode 12 Episode 13 Watch Concrete Revolutio (Dub) - Episode 4 Online Aired: Oct 4, 2015 to Dec 27, 2015 TV - (Finished Airing)
