The ancients determined the seasons based on the direction pointed by the Big Dipper. Today, we have a new Big Dipper, spanning the skies above us, becoming our "eye in the sky," safeguarding national security and serving society and the people's well-being. This is the BeiDou satellite navigation system, independently developed and built by my country. The novel depicts the arduous and magnificent construction process and the growth of each individual along the way. Like the Big Dipper, they shine like a starry sky.

An ordinary person from modern times who knows nothing accidentally travels back to the early 1950s. What? This is my wife, who is 1.9 meters tall, with fair skin, beautiful face, and long legs. She is afraid that I will leave her and is always submissive in front of me. Every beautiful woman I meet is involuntarily drawn to me. I can only take my golden finger with me to my grave.

(Not invincible) (No system) (No female lead) (Warning: The protagonist is like a gender-swapped female lead, slightly saintly; if you like fighting and killing, you can skip this book) (If you think this is bad, you can skip this book! No explanation needed! No explanation needed! No explanation needed!)

Natural disasters, gods, giant beasts, Oripathy, demons... countless calamities ravage this land.

Many people are buried in this land and have disappeared without a trace.

The locals lived in extreme poverty, let alone an ignorant soul from another world.

...

The doctor looked down at the operator's file in his hand, then turned to look at the personnel department operator next to him.

"Is this the operator I want?"

"Of course it is! It was all done according to your requirements."

"I need an operator who can deliver packages, that's true, but what kind of packages does he deliver?"

"I don't know, you'll have to ask him yourself. I'm just a human resources officer."

...

"Doctor? What brings you here? You asked if I wanted to go to the docks for some fries? No, I think we should be thinking about how to get everyone to go to the docks for some fries, or what this land really needs... What past events? Oh, that's what you mean... Take your ill-fated lover and go get a large portion!"

Warning: This is written by a complete novice! It can be read as historical fiction!

[Music + Gender-swap story + Girls' close bond + Slice of life + Joy + System + Beloved by the group + Healing]

I've been reincarnated! I've been reincarnated! I've arrived at the Starry Sky Railway! Great! But why the hell did I become a white-haired girl?!

On her first day as a girl, Tao Bai felt a strong resistance.

Three days after becoming a girl, Tao Bai officially changed her name to Tao Baibai. (Sad)

On the Nth day after becoming a girl, Tao Baibai had become an online singer: "Dear viewers, please be kind and give me a like and follow to help me become the next robin."

Robin: "I found a white rabbit by the roadside, I have to take it home."

Trail Blazers (Star): "Tao Baibai is my wife, take it or leave it!"

Firefly: "Did I come at the wrong time?"

Huang Quan: "Another white-haired one? Hehe..."

When everyone else reached for her, she had no choice but to shout, "Stop! I'm a man!"