Genius scientific research youth Lu Chen went incognito for three years for the country, developing a nanolithography machine that subverted the world. When he appeared again, he had transformed into a Beijing University freshman, unexpectedly reuniting with his first-love campus belle Bai Ningbing, who had thought he passed away long ago. While low-profile guarding her, he secretly upgraded nano-mechas capable of changing the battlefield tide. When a mysterious force extended its clutches toward Bai Ningbing, Lu Chen exposed his true form in public for the first time; he is not only an affectionate youth, but also the country's most top-secret technological sharp blade. Yet his ultimate identity will completely subvert everyone's imagination.