The year seven of the period of Kova, occupied by the Nav-Bitanian Empire in the East Hokkaido block, Live Mercury Brothers, known as the nameless mercenaries. The greatest, ash, has excellent athletic ability and grip -controlling skills, while the youngest, fasting, clear and intenses are assumed to collect and prepare strategies. Due to an impermeable wall of energy called the wall of the sietamp, the 100th emperor for four years, who stopped the Black Nights Liberation Plan, Kallis al Britannia, his servant, with the help of Norland, once again try to immerse the world in chaos doing. , And his Eenberg knights. On receiving a request, Roste and Ash, along with the seven shining stars resistance group -face the empire to resume Princess Sakuya.
