Nihei Tsutomu releases the manga series Knights of Sidonia, which the TV show is based on.
The Knights of Sidonia anime series debuts in Japan, bringing the manga to life in animated form.
The second season of the Knights of Sidonia anime airs, continuing the story and expanding the fanbase.
Earth constructs the massive spaceship Sidonia to escape the alien threat known as Gauna.
Sidonia leaves Earth carrying humanity's survivors to find a new home and avoid the Gauna menace.
Nagate Tanikaze begins training to pilot a Gardes mecha to defend Sidonia from Gauna attacks.
Sidonia faces a large-scale assault by Gauna, testing its defenses and pilot cadets including Nagate.
Nagate earns recognition as Sidonia’s top Gardes pilot due to his skill and bravery during Gauna engagements.
Revelation about Shiro’s true identity and its link to the Gauna causes tension aboard Sidonia.
Sidonia reaches the planet Tama, offering a chance for humanity to settle on a new homeworld.
Izana is saved during a critical mission, deepening the bond among pilots.
A climactic encounter between Sidonia's forces and an overwhelming Gauna assault threatens the survival of the ship.