Doryoku, the Japanese word for Endeavor or Effort, is what the human population will have to endure to survive.
2093, the population of Earth was forced to mass exodus. After years of mass consumption and depletion, the Earth has finally expired. Fortunately, the discovery of a habitable planet and the advancements of super-light travel has given humanity hope for survival. The U.I.E.U., United Interstellar Exodus Union sets off towards the planet Gavel - 17f in pursuit of a new home.
All of humanity is separated into massive ships called Craft Worlds. Each craft world is separated into 26 ring-like structures called Units. No one is allowed to enter or leave new units.
I Atlas Shiokaze, a 20-year-old citizen of the American Japanese Union, has been in the U.S.S. Phalanx Unit B for the past 7 years. The same people, places, and perceptions, the staleness of life and boredom have finally robbed me of my happiness.
Longing for a new life and a new perception of the world, I have decided to traverse the Units.