After suffering from an ambush, a dreadnought-class battleship is the sole survivor of a massive fleet. To prevent its technology from being acquired by space pirates, it warps to a faraway galaxy and lands on a primitive (smartphone era) planet.

The primitive planet is infested by monsters that are pouring out of portals/gates.

The only survivor of the ship's crew – a Petty Officer promoted to Admiral rank due to circumstances – learns that it would take thousands of years for the ship to gather enough energy to warp back to the nearest outpost of the Galactic Federation.

In order to gather enough energy for the warp, he decides to create a Tower of Trials on the planet using the remaining power of the ship. The Tower helps the awakened (hunters) humans grow and unawakened humans awaken their powers. In return, the awakened humans release aether into the world's atmosphere, which is then harvested by the ship.

(Synopsis is tentative)