Operation Yamato

Operation Yamato (ヤマト作戦) is the operation that WILLE enacts to prevent Fifth Impact and the Human Instrumentality Project from occurring through the use of a deactivation key held by New Unit-02α.

The operation commenced with Wunder arriving in Antarctica only to be intercepted by NHG Erlösung. After evading its attacks, the Wunder manages to submerge below the white hex layer into the red depths below only to encounter the NHG Erbsünde and a swarm of Evangelion Mark.07.

After taking fire from the NHG's, the Wunder manages to reach the drop point above NERV HQ where New Unit-02α and Unit-08γ begin their descent fighting hordes of the mass produced Mark.07 on their way down, eventually arriving at NERV HQ where they're attacked by a group of Arm Units. With Unit-08γ staying back to fight, New Unit-02α further descends into the depths of NERV HQ to reach the dormant Evangelion 13. After multiple failed attempts to reach the Evangelion 13 with the deactivation key, Asuka Shikinami Langley realizes the key is being stopped by her own units A.T. Field.

Meanwhile, Erlosung and Erbsunde descend to the NERV Cavalry Base and begin emitting Wings Of Light the Black Moon is used as material to form a new spear and while attempting to destroy it, the Wunder sneakily have its main weapons disabled by ​​​NHG Gebet. Evangelion Mark.09-A hijacks Wunder reverting it to NHG Buβe, assuming control of the ship. During this Misato and Wunder crew are unable to take back control. With no other choice, Misato choses to confront Gendo Ikari face to face.

In order to break her own A.T. Field, Asuka reveals that she had sealed the Ninth Angel residing within her using an angel sealing pillar hidden behind her eye patch. She disables all restrictions and actives backdoor code 999. By removing the sealing pillar and the activation of Asuka's DSS choker, she injects the Angel Blood stored in the New Unit-02α's shoulder pylons to be injected into the Evangelion's core resulting in her transformation into a new radiant giant. The newly formed fusion breaks through New Unit-02α's A.T. Field but before it can use the deactivation key, Evangelion 13 activates destroying the New Unit-02α and the Ninth Angel in the process. After consuming Asuka, Evangelion 13 is once again able to enter a state of awakening.

During the confrontation on the nacelle, Ritsuko shoots Gendo in the head multiple times which proves ineffective as Gendo had already used Nebuchadnezzar's Key giving him immortality and the ability to merge with Evangelion 13. After confronting Shinji, Gendo proceeds to merge with Evangelion 13 leading to the beginning of the Additional Impact. The now completed Evangelion 13 proceeds to steal the remains of Unit-01 from the Wunder's engine before heading into the Minus Space to begin the Human Instrumentality Project.