Since the time humans have begun to cross their way to the final frontier, new things have been discovered every day. New planets, new solar systems, new creatures, new intelligent lifeforms with their own complicated, interesting cultures. But as more intelligent lifeforms are discovered and more and more people all across the galaxy connect with each other, the need for an international military system, one that will protect the earth from the increasing threats of violence from other lifeforms, increases. And with it, comes the ESMS, Earthian Space Military System, that sails the final frontier and protect the earth and its colonies from the impending threat of extraterrestial attacks and the increasing population of space pirates. The Cinnabar is one of them, sent to venture on the third section outside the heliosphere and to bring the notorious gang of pirates, the LazuliSky, down to its knees. With the cold, proud Colonel Ren who never seems to be short of various problems as their captain, how will their 10 years of service go? Or will the captain eventually be lured by the warmth of one of his crews instead, First Sergeant Baekho, before their time of service ends?