Jinto and Lafiel find themselves aboard the light-armed transport ship "Bokbrusue", journeying through the planar space of the Hyde System. Their mission: Jinto's appointment as Earl to govern the newly Imperial-controlled Hyde System, met with fierce opposition from his homeland, Martin. Meanwhile, the "First Devastation Fleet" mobilizes to the Hyde System with their advanced "Attack Vessel" ships for training exercises, setting the stage for unforeseen events.