DC's Dr. Jurgen created a worldwide defense system to counter possible extraterrestrial dangers, consisting of two components: the unmanned, anti-alien PT VTX-001 Vartoul and the global network system ODE, which governs the drones. Nonetheless, there is a remarkable confidential aspect attached to this system. It necessitates a human being to oversee the ODE core, and the latter requires human organs to maintain itself. Unfortunately, the drones have unpredictably started abducting individuals in large numbers, so Kyosuke and his team have been dispatched to address this concern.