Watch full Concrete Revolutio Episode 4 English Dubbed streaming online. Concrete Revolutio Episode 4 English dub online for free in HD. Japan "Beast" History, Part 1. Shortly after the incident with Grosse Augen, beast (kaiju) attacks are on the rise across Japan, though there are ample numbers of superhumans to deal with them. Fuurouta discovers that one of his friends is secretly feeding a tiny beast called GaGon, and through him the Superhuman Bureau meet up with "Beastly Radio Wave", a small group of peaceful beast enthusiasts. However, Jiro soon discovers that the radio group is actually using GaGon to clone several giant beasts for their own purposes. One of the beasts grabs Jiro, forcing him to unleash the locks holding in his own superhuman power as he burns the radio station to a crisp.