Origin of life*Newbeginning

An ordinary human and a mystery girl with an alien brain.

To cultivate all kinds of life on a barren planet.

When these lives grow.

Science and technology trees are completely different from humans, so that the stars are no longer far away.

Where is the half-life race of mankind?

Where did the solar System''s lost stars go?

Why is the Milky Way so barren?

Is there really only one civilization in the universe?