Su Yan, a mechanical genius at Yan'an University of Science and Technology, had a fateful encounter with the cold professor Cheng Shu due to an elevator malfunction. He is a closed disciple whom he accepted as an exception, an accomplice who shared the scent of cedar and mint in the late-night laboratory, and a "plagiarist" reported anonymously in the patent dispute. From the gear bite to the heartbeat resonance, from the mystery of the Dresden fire scene to the entanglement of the three generations of the Cheng family's mechanical bloodline, the two calibrate the tolerance of love in the fragrance of pomelo and the traces of snow. When Cheng Shu used marriage as a shield to protect his future, and when Su Yan tore up the MIT admission letter to recover twenty years of emotional IOUs, rationality like a precision instrument finally surrendered to the out-of-control heartbeat. This is a game between machinery and flesh and blood, a mutual taming of error and eternity - only by using cracks to build new life can eternity be captured between the gears of time.
Purpose: Research requires seriousness, and so does love