A thousand years ago, the "East One" outpost of a great eastern nation, located beyond the solar system, officially entered orbit. It marked the beginning of humanity's new Age of Exploration. The stars and the sea were their destination!
Sadly, the vast universe could not put an end to desire. Instead, it became its cradle, allowing it to grow and spread until it ran rampant in the hearts of the ambitious.
Shadowy masterminds stirred up turmoil to satisfy their own selfish desires. The irreconcilable conflict between the crown and the Church, and bloody struggles waged under the banner of peace, all kept humanity embroiled in internal strife.
And that was not all. In the universe, intelligent species born to violence lurked in the shadows, hungering for humanity, still weak and vulnerable, as they quietly opened their cavernous jaws...
As the tides of fortune shift, I will stand firm with my blade in hand. A mysterious young man from a garbage planet: how will he break through humanity's internal and external crises and tear away the layers of darkness that blot out the sky?