It's more than ten times as far to Suzaku as to Danube. Chen Yang went to Danube at first, at will. Danube is hidden, so human technology has not found it. As for Suzaku, we can't detect it.

Of course, Kepler Fairyland is farther away than Suzaku. But the discovery of Kepler by human technology was captured in light.

As for the development of Kepler Fairyland in Celestial World, it is because of the first arrival of alien creatures on Kepler. As a result, the fairies ran back and enslaved them.

Although, science fiction often says that extraterrestrial life is stronger than Earth. But the fact is that the fairies...