Summary Act III

Iczer Robot is fighting against Iczer Sigma but Iczer-One is seriously handicapped by her wound and they are losing. Iczer Sigma cuts the right arm of Iczer Robot, the same arm where Iczer-One is already wounded which put her to the agony.
Suddenly, Iczer-2 notices Sayoko in the street and crushes her ! Nagisa is filled with chagrin and suddenly power seems to flow all over Iczer Robot ! They stop Iczer Sigma attack and destroy it with a mighty energy beam. Iczer-2 teleports herself away from Iczer Sigma just before its destruction but Sepia has no way to escape.

Iczer-One shows to Nagisa that Sayoko is safe : she was protected by her bracelet. Nagisa finally makes up with Iczer-One and decides to fight with her. They bring Sayoko to a safe place, not yet invaded by the Cthuwulf's monsters.

Sir Violet remembers her first meeting with Big Gold. We see Iczer-One waking up and leaving the Cthuwulf spaceship just before Big Gold takes control of it. Sir Violet falls on the floor, unconscious, but finally free of Big Gold control.

Nagisa and Iczer-One are resting after their fights. Nagisa asks her why she is fighting for the Earth and she answers that she is an android, created by the Cthuwulf, and that she doesn't know why she fights. She counts on Nagisa, her partner, to tell her the answer.
While they are speaking, they are suddenly interrupted by Iczer-2 who captures Nagisa while Iczer-One has to fight a Void in another dimension. Iczer-One is too badly hurt and she has a very hard time fighting the Void. When she finally manages to kill it, she has no strange left and she falls on the floor unconscious, still trapped in that dimension.

Iczer-2 brings Nagisa to Big Gold who reveals herself to be a computer ! Iczer-2 wants Nagisa has her partner to kill Iczer-One and rules over the universe ! But Nagisa refuses and prefers to die than doing so.

Near the moon, the humans launch their greatest and most powerful battleship. But it just has the time to leave the orbital base before they are both destroyed by Big Gold !

Nagisa

Iczer-2 is ready to kill Nagisa who is calling after Iczer-One for help. Iczer-One is still unconscious, trapped in the other dimension when Iczer Robot suddenly appears and transports her into its cockpit. When Iczer-One wakes up, she is inside Iczer Robot, back in our world. She launches Iczer Robot at the Nova fortress and managed to pierce its defences and to breach it but Iczer Robot is destroyed in the attack.

Iczer-One is inside the enemy fortress but she finds herself surrounded by monsters. She is still too badly hurt and too weak to fight them all. Suddenly the monsters stop their attacks and Nagisa walks toward Iczer-One and shoots her ! Nagisa is controlled by Iczer-2 and she asks Iczer-One to kill her but Iczer-One is unable to do so.
Nagisa implores Iczer-One to kill her before she kills her herself as Iczer-One is the only hope of survival for the Earth.
Stricken by grief, Iczer-One shoots at Nagisa and kills her.

Nagisa spirit seems to leave her body and to enter Iczer-One. She realises that they are synchronising and she is suddenly filled with energy and power. Iczer-One destroys all the surrounding monsters and confronts Iczer-2. She doesn't want to kill her but doesn't have any choice. Then she teleports herself near Big Gold and attacks her. Using both her power and Nagisa's one, she destroys utterly Big Gold spirit.

Iczer-One is floating in space, above the Earth, cradeling Nagisa's body in her arms and grieving above her death. She will leave the Earth with the Cthuwulf spaceship to protect them as it's her duty now that they are free of Big Gold control but before that, she brings back the Earth to a time just before the Cthuwulf invasion.

We see again Nagisa leaving her home and going to school. She crosses Sayoko and her mother path but doesn't know them. Then she notices Iczer- One looking at her from the side of the road and after exchanging a long look, she continues her way. Iczer-One leaves the Earth and go back to the Cthuwulf spaceship.