621..olso know as raven..have done many things ..he defeat many acs face rubicon's toughers weapons create even face corporations and help out the rubiconias and defeat allmild along with iguazu..now he stare an the coral release along with ayre as the project was activate but...something happen..neither raven or ayre expect as raven was send to an unknow planet..an fact it was earth..but an the past as ayre was with him..as both find out they arrive to the past but..it wasn't the same earth..because this one there was no space travel or corporations and the thing is...ac's doesn't exist istead there is iS or infinite stratos an mech suit who only women can use now the duo need to face this new world...how the raven and the coral wade will handle it?