The brawlers went to the near unamed city next to the field. While the brawlers goes to the nearest city to get the medal that they needed, Hypnosis gas surrounded is the problem caused by a mysterious Crystal Monster, so Kouchu and his friends puts on their protection masks so they would not be affected by the Hypnosis gas. The problem came from the upper sewers, as Kouchu and his friends climbed up to solve the problems. Kouchu and co. went out in the afternoon and figured out that everyone is asleep. The mysterious monster appears to be Lickruth. They were forced to do so, but find ways to quit the job. So the brawlers have to fight against the workers in order to stop spreading gas.