[Urban + Reborn + Farming + System + From-the-Start Sign-In + Wish Fulfillment + One Female Lead + National Development + Sweet Romance!]
Su Nan is unexpectedly reborn in Blue Star, a world driven by technology.
Wars rage endlessly between nations, fought with advanced particle technology.
Fortunately, he obtains a sign-in System.
"Ding! Sign-in successful!"
"Purple Nanometer Laser Cannon x1"
"Ring-Shaped Drone x1"
Su Nan quietly signs in, steadily building up his technological strength.
Three years later, the fighting reaches his doorstep.
Countless high-tech weapons never seen before appear, tearing through the night sky amid blazing explosions, unmatched in the world!
Su Nan: "Sorry, I can't keep a low profile anymore!"
The color of a star's light is determined by the temperature of its surface
Not bad, well written