Random battlefields, Valley of Trials, sleeper cemetery, the land of the abyss, are mercenary group contested. Countless mercenary group fighting kill here, only the strongest here in order to become masters of the brave, they are the future masters of the mainland Yi Mier. Strong battle, not only the strength of competition, as well as the team's perseverance perseverance, a field kill war, survived the mercenary group has the right to accept the rule of Yi Mier mainland, the mainland they are Yi Mier final victory who wins a badge of their awards.