Himiko

In the manga, Himiko is the dead shaman queen of the Yamato tribe.

In a parallel reality, Japan won WWII and stretched across the blue sphere. Ruled by Himiko, they went out into space, but with her death, the stars dimmed. Japan invested everything in finding another Himiko. They discovered different dimensions and send fleets into these new realms. After generations of searching, they finally found Himiko... Yurika Misumaru.

The Himiko of Japanese legend ruled Wa and made contact with Wei China.