It is the cosmic era tensions are rising between people who are born with out genitic modfications Natruals and the ones that are Coordinators . If things couldn't be weirder ships of known markings appear in space suddenly they are the frontier milltia far from home . You are not from the Milltia but you join its ranks as a titan weeks after the bloody valentine incident . The Millita at first remain neutral staying in places like ORB however you get dragged in to it with first combat than again when ZAFT attacks Heliopolis . However its not all war and battle you do find love but will this war change you ?