It has been  600 years since mankind first stepped foot on the planet of Osnillion hoping to find another source of water.. another 'Earth'. With the discovery of Osnillion's capability of sustaining life, it was decided that a colony in Osnillion was essential in the survival of humans. Now 600 years later, an earthling named Suho begins to discover Osnillion's secrets- secrets that could endanger both the human race and Osnillion itself. A secret that meant a choice between the human race.. or Osnillion..