Two top academic doctors from Anhe Hospital, Tan Jing, the "iceberg" in the heart, and He Weining, the "venomous tongue" in obstetrics and gynecology, fell out over a cross-department treatment. He disliked her for being stubborn and rigid, and she disliked him for being arrogant and narcissistic. The whole hospital knew that Dr. He was out of character and wanted to pursue but couldn't let go of his arrogant air. However, Dr. Tan was unaware that he just wanted to focus on surgery. In each life relay, he was the first to be moved, starting a "marathon of chasing his wife" with high IQ and high EQ. When a knife outside the heart finally understands under the shadowless light, can the heartbeat that belongs to her alone and is chaotic because of him, love and career, come to a successful conclusion together?