Aliens Tricked Me into Building a Spaceship to Send Him Home

[City + Business Empire + Technological Development + Space Exploration] This article tells the story of the protagonist Zhang Qian and his alien partners opening a company on earth, improving technology, exploring the world, traveling to the moon and Mars, grabbing money all over the map, recruiting people, and finding materials to build spaceships. Background: The alien Feihe comes from the Kedra star field 5 billion light-years away from the earth. He and his partner Xiaoxing live on the earth. Their hometown is about to encounter war. They need to return with the cosmic stone as soon as possible to save Kedra! However, Earth's technology is too backward, so we can only trick the protagonist Zhang Qian into building a spaceship for them and send them back as soon as possible.