In response to signs of an impending invasion by alien conquerors, five young people have undergone modification surgery in order to gain the strength to fight them off when they arrive...<br /><br />...but there's been no sign of them since the initial warning message ten years ago.<br /><br />So in the meantime, the hero of justice Serena and her teammate/lackey/punching bag Souya have been using their powers to protect the weak and destroy evil wherever it looms its head...<br /><br />...and when they're not doing that, Serena's trying to pick up chicks. And Souya's fiddling around with his anime figures.<br /><br />But with the sudden return of their childhood friend, things are in for a change...<br /><br />...or maybe not.