In the not-too-distant future, in an island nation that has fallen into anarchy after numerous disasters...
Members of Stryker, a private security organization set up to fight criminals, wage a fierce battle against evil every day.
One such member, S-rank prodigy Lumina, is tasked with taking down the nascent "Guilty" gang.
Will she be able to accomplish her mission? And will she be able to find the woman she has long sought...?