RPG Dimension Cross

The new type spaceship Zero has set out on a journey to further expand the sphere of humankind. During the test, the spaceship arrives at a certain planet. Kyle and the other crew members witness facilities that shouldn't be possible given the level of civilization on the planet. But the original inhabitants of the planet have been captured. And a man who was supposed to be an ally has been up to something in secret. Just what is going on in these lands?