In 2046, a revolutionary 80% shock-absorbing reinforced cardboard has been developed, rapidly transforming the world's exports. The reinforced cardboard would soon become the battleground for a popular children's hobby called "LBX" (Little Battler eXperience).<br><br>
Four years later, a boy named Yamano Ban who loves to play with LBX (although without a mecha himself) is given a case containing the model AX-00 by a mysterious woman. He is told that he now holds the hopes and despairs of mankind in his hands. 

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One year after the fight with the Innovators, a new terrorist organization called the Detectors threatens the world using LBXs. Ban joins up with new and old friends to stop the Detectors.
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(Source: Anime News Network)

Masashi Hosoi