A mobile machine created by Hyaku no Shin in accordance with the prophecy in the "Scroll of Light." It has the ability to transcend time, and returned Alex to his original world. It also gained new powers with the birth of Yondaime Gundam Daishogun, and contributed to gathering all the successive Daishoguns across the ages in order to defeat the Yami Koutei. It is made up of three parts: an A Mecha, a G-Fighter, and a B Mecha, but when Alex pilots it, Alex takes over instead of the G-Fighter. The Ei Mecha is equipped with a space-time cannon that can fire a special move that transcends time and space, the Jikuu Ha.

Like the G-Armor, it has a shield on the side, but the design of the shield is based on the NT-1 shield to match the Alex that it stores.