In Act 1, Nagisa and Iczer-One meet when the Cthuwulf attack. The aliens send their biomechanical Voids and trap Icezer-One and Nagisa in dimension subspace. Later, Commander Cobalt launches an attack against Magisa's city using the Dilos-Theta mecha. Iczer-One must convince Nagisa to join her and challenge Cobalt with their mecha, Iczer-Robo!

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