Lin Xingwan, a scout with the Milky Way Defense Force, is ordered to infiltrate Earth and find the "Ark Core," which can protect against the Harvesters. But her ship is ambushed in lunar orbit, and her escape pod crashes on Earth. Her nan armor has only 3% power left, and her disguise System automatically gives her a human identity: ordinary university student Lin Xingwan.
She can't reveal her superpowers, kill any humans, or attract widespread attention. But she never imagined that Earth would be harder to get by on than a galactic battlefield: instant noodles are awful, exams are absurd, surveillance cameras are everywhere, and her roommate, Gu Chen, just happens to be a police detective.
To make matters worse, the Tianqiong Group has already set its sights on the wreckage of her ship, and the traitor Thorne is secretly hunting her down. If the Ark Core's signal is exposed, the Harvester mothership will arrive in three years. By then, Earth will become the second planet to be erased.
Lin Xingwan only wants to complete her mission and save Earth in secret. But every time she lies, Gu Chen asks calmly, "Where are you from?"
She's an alien big shot.
But starting from scratch, all she can do is disguise herself as an ordinary student.
And Earth is her final battlefield.