早在「開拓」星神阿基維利巡弋星海的古老歲月之前，人們已經將視線投入天穹之上的浩瀚銀河。懷揣著對未知的無盡好奇，無數文明開始了星際探索之旅。但無一例外地，他們的嘗試均以失敗作結。

在天才俱樂部#1贊達爾·壹·桑原的「虛數之樹」理論中：宇宙中充盈著神秘莫測的虛數能量。虛數將一個又一個星系隔絕，即使光在這種能量之中也寸步難行。因此，人類對星空的探索，往往只能停留在各自世界的邊界，再難深入。同時，贊達爾也提出了一個構想：即若能掌握並運用虛數能量，人們就將掌握宇宙。在很長時間內，這都是一種浪漫化的空想。直到星神的令使出現，使構想成為了現實。

Interstellar Travel (Phenomenon)

In the ancient times before Akivili the Trailblaze traversed the starry skies, people were already casting their eyes to the mighty cosmos above their heads. Armed with infinite curiosity towards the unknown, countless civilizations had started space exploration. However, their attempts had all failed.

In the Imaginary Tree theory put forward by Zandar One Kuwabara, 1st member of the Genius Society, the universe is filled with the mysterious Imaginary Energy. Imaginary Energy isolates star clusters from each other and even light cannot pass through it. Therefore, human space exploration is often limited by the boundaries of their individual worlds, unable to advance any further. Zandar also posed a hypothesis that humans would be able to control the universe if we can control and manipulate Imaginary Energy. It was a romantic illusion for a long time, until it was brought into reality by the appearance of the Emanators of Aeons.