Higher-Dimensional Invasion, but I Protect Civilization with a Junkyard

[Below is a preview of a new no-CP heroine story, The Whole World Watches the Livestream and Learns Skills Along with Me] With both her parents dead, Fu Liu lives alone, scraping by on the salvage yard they left her and barely making ends meet. Her life was set to carry on, plain and uneventful, until she dug a broken watch out of a garbage heap. Before she could throw it away, it snapped onto her wrist and wouldn't come off. From that moment on, her life started getting strange. She'd pick up a model, a Gundam, or a machine, and the watch would tell her it was a starship, a mecha, or a spacecraft. Fu Liu: So all your starships, mecha, and spacecraft are 440 by 80 millimeters, are they? Watch: [Because they haven't been unlocked yet, miss.] Fu Liu: Where are you from? Watch: [The AI is from Earth, Huaxia, miss.] Even when Fu Liu handed these things over to the government, she still had no idea... Once unlocked, they would bring a catastrophic disaster upon her Blue Star and its civilization. == One day, a high-level civilization claiming to be the Children of Huaxia suddenly attacked. An inverted triangle loomed overhead, alongside sleek sci-fi reconnaissance devices and enormous machines identical to the unlocked spacecraft, descending upon Blue Star. Maybe the world was about to end, people thought bleakly. Then, in the very next moment, a super mecha rose from the ground beneath their feet. Fu Liu: Come on, let's see who dares invade my home under the banner of Earth! [Reading Guide] In this story's world, Earth is already a powerhouse. It appears midway through the book. There is almost no romance. The main plot follows the entire civilization of Blue Star struggling to survive. This story continues the setting of I Guard Earth in the Interstellar Age. You can read this one without having read the previous story. The Whole World Watches the Livestream and Learns Skills Along with Me is also a no-CP heroine story! Preview saved on 2023-10-11, screenshot taken. ▍The heroine has no idea she's being livestreamed. ▍Earth is ascending to a higher dimension. In the year 2077 on Earth, all of humanity woke to a mechanical voice speaking in their native language: "Livestream room bound." Then people around the world discovered that the livestream app appeared on every device. It couldn't be deleted, uninstalled, opened, closed, or used to communicate. Its sole function was to open automatically at random times and livestream the daily life of a girl of Asian appearance named Zhou Yun. Zhou Yun spoke standard Huaxia Mandarin, prompting countries around the world to isolate Huaxia. But the simmering conflict soon subsided. After the first person in Huaxia learned to cultivate by following Zhou Yun, a tiny, inconspicuous line of text appeared in the upper-right corner of the mysterious livestream room. Countdown to Earth's destruction: 1,096 days. The countdown had officially begun. ▍ Zhou Yun hadn't wanted to transmigrate, either. Back on Earth, she had a happy family and loving parents. She had modest ambitions, but if you asked whether she wanted to transmigrate, she'd say absolutely not. But who could have guessed that even an ordinary person could transmigrate these days? From the start, she was on a sheer cliff, one step away from plunging into the demon race's marshes, with no way back. At just four years old, starving, freezing, and barely able to walk, she ate raw meat and crossed a blood swamp just to survive. In the end, she found a cultivation manual among the dead, and from then on, she soared to greatness, unstoppable. The countries of the Ancient Origin Continent had carved up the land, and immortal sects were everywhere. The priests of the first generation of warlords who founded nations had given their lives to prophesy that the star of destiny who would unite the world would come from an obscure little country. The various factions hid the prophecy away, never to let it see the light of day again, leaving the continent mired in endless warfare and the immortal sects at odds. The warlords who founded those nations had no idea that the priests had concealed the final part of the prophecy about the star of destiny, hoping only to win their people a chance to survive when it appeared. Because that wasn't a star of destiny at all. It was a blood-soaked, iron-hearted Seven-Kill, consumed by bloodlust and crawling out of a mountain of corpses and severed limbs! Theme: The struggle to survive in the universe, and the shining moments when human civilization refuses to give up!