After the victorious Inazuma Legend Japan faces off against the New Inazuma Eleven in an exhibition match, chaos erupts as mysterious little robots known as 'LBX' swarm the stadium, unleashing unprecedented technological mayhem. Tenma and his companions valiantly counter the onslaught, but the relentless waves of robots persist until the unexpected arrival of Yamano Ban. Now, the formidable soccer team and the powerful LBX army must join forces, heralding the dawn of an intense and unexpected clash.