From the Old Medical Records, the Heartbeat in the Seventh Year

Su Wei, from the Pharmacy Department of a city hospital, was sorting through old medical records when he accidentally discovered something fishy in a heart surgery record from seven years ago. When she tried to trace the truth, she unexpectedly met Lu Chengyu, a cardiac surgeon who had just returned from abroad. This man who once left a deep imprint on her youth has now become her biggest obstacle to uncovering the secret. As the investigation deepens, dusty misunderstandings, deliberate concealments and restrained emotions intertwine in the corridors of the hospital. When the expired truth meets the unexpired heartbeat, can they recalibrate the heartbeat frequency amidst the ticking sound of the stethoscope?