A thousand years ago, a catastrophic event occurred when giant, shape-shifting aliens known as Gauna destroyed our solar system. In response, humanity built massive spaceships to seek refuge on a new planet. One such ship is Sidonia, which has been fighting against the Gauna. The story follows Nagate Tanikaze, a mysterious teenage boy who becomes a pilot of the ship's guardian robots and grows up to become known as the "Knight of Sidonia".
Nagate Tanikaze lived secretly the bottom of spaceship named Sidonia. One day...