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Dr. Jurgen of DC developed a global defense system to combat potential alien threats. This system has two elements. First is the VTX-001 Vartoul unmanned anti alien PT. Governing these drones is the ODE worldwide network system. However, this system has a noteworthy secret. A living human is needed to control the ODE core. Furthermore, the ODE core needs human organs to support itself. At the present day, the drone have gone on a mass abduction spree. Kyosuke and co has been sent in to take care of the problem.
Despite the history of their warring past, the four planets of Ice, Rock, Fire, and Bone must set aside their differences and feuds to work together and form an alliance: their only hope of defeating a common enemy. The powerful Beast Planet, whose only purpose is the total destruction and annihilation of other worlds, has now entered their universe from the darkest reaches of space.