Seventeen days later, after receiving the plan approval order from the headquarters of the Federation Army, the Earth Federation and the Noctem Chamber of Commerce's combined fleet set off from the Purple Cloud Planet. First, they quickly jumped to the periphery of the star system through the teleportation door in the near-Earth orbit of the Purple Cloud Planet. Then, they used the stargate that the Erehuana Military Treaty Alliance had forcefully opened to jump out of the Earth Federation's territory.
As soon as they jumped out of the stargate, they launched a sharp attack on the Erehuana Military Treaty Alliance fleet stationed here.