* Based on a game by Navel.

Aries, an old tourist space station outside Earth's orbit doubles as a preparatory training facility for the Central Military Academy students, the temporary home of Aizawa Ryouta, a third year, and his classmates, including his love interest, Nagase Sayaka, his unacknowledged rival, Nitta Kazuhiko, and the proclaimed genius Aizawa Shuuhei, his older brother.

The space station is attacked by the terrorist group, Hallarax, and after helping in the evacuation of the majority of the civilians and staff, Ryouta, his friends, and a handful of others are left to battle for control of the space station as Hallarax threatens Earth with nuclear retribution.

Holed up in a separate section of the station, the group holds their own against the terrorists until the emergence of a third enemy, wrought with treachery and greed, creates unlikely bonds of camaraderie in the struggle to protect themselves, each other, and ultimately, Earth.

— written by Quaenorde

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