Far far away from now,in a far far away galaxy, Dark Force has created thousands of machine pilots in their secret labs,they want to control the whole galaxy and kill anyone who might be stand in their way of conquering the galaxy. They also bring their war machines in front of us and aim at homeland.They want to bring disaster to the galaxy and the human beings living there,including other species there. All we can do now is to fight back and give them a clear answer,we human beings are all brave guys. We need to fight and failure is definitely not an answer! At this moment,we human being heroes decide to fight against Dark Force and crush those machine pilots at any cost. The operation has been codenamed Raiden Air.