Mother Tongue Among the Stars

"This is impossible..." Lin Yuan stared at the life monitor, his fingers trembling slightly. In this ancient spaceship that has been floating for three thousand years at the edge of the galaxy, the girl in the dormant cabin actually has a heartbeat. When the hatch opened and the black-haired girl in strange clothes opened her eyes and said "Where is this" in pure Cantonese, the entire archaeological team froze - that was Lin Yuan's hometown dialect, a language that should have been extinct in the era of interstellar migration. Lin Xiaoyu is an ordinary high school student in the 21st century. The last memory he has is the moment when the school bus fell off a cliff. After waking up, she faced a world that spoke the same language but was completely unfamiliar: mechas that knew martial arts, technology that could modify memory, and a group of future people who studied her as a "living cultural relic." But with in-depth exploration of the mysterious ancient ship, Lin Yuan discovered that things were far from accidental. The black box of the spacecraft records a history that was deliberately erased: human civilization reached its peak seven times and self-destructed seven times. And this time, the countdown to destruction has started... "We are not excavating history," Lin Yuan looked at the test report in his hand that perfectly matched Xiaoyu's DNA. "We are preventing history from repeating itself." When the fleet of the Interstellar Federation surrounded them, claiming to "protect the last pure species of mankind," the archaeological team's mechanics silently started the irregular modification on the mecha - the quantum cannon modified from a kitchen microwave. "Welcome to the future," Lin Yuan handed an archaeological pickaxe to Xiao Yu, "Now, let us teach these evolved descendants what the 'wisdom of the ancestors' is."