One hundred years ago, the calm life of the Royet Empire was disrupted by the invasion of strange and dangerous creatures called Others. The swarms fought desperately for their freedom, but lost to strong and ruthless enemies. Only a few managed to escape by traveling by ship to the neighboring mainland. It would seem that the danger has passed. But the prophecy made by the goddess on the day of the exodus of the swarms is still alive in the memory of the oldest priests, and the sacred flame of battle burns ever brighter. Who will be able to unite the forces of gods and mortals, and is everything so simple and unambiguous with the prophecy?18+