Rescued. According to the plot of "White Castle", in episode 12, Liu Fei's mother was brought in by ambulance and had to be operated on personally. On the operating table, Liu's mother said she believed in Liu Fei and closed her eyes with relief. During the operation, Liu's mother suffered an anaphylactic shock reaction. Liu Fei and Professor Liu persisted in rescuing her and finally brought Liu's mother back from the line of life and death. The image of Liu Fei's mother is also one of the important side themes in the novel, reflecting the impact of social environment on personal destiny and the fragility of human nature. "White Castle" mainly talks about the eve of graduation. Wang Yangming, who was committed to reversing heart failure, had a disagreement with his mentor on medical experiments. He decided to switch from scientific research to clinical practice and successfully joined the emergency department of Ruiren Hospital, which ranked first in cardiovascular disease in the country. . And formed the "Emergency Four" who are in trouble and suffering. The four witnessed each other's growth and changes, gained friendship and love, and also experienced reunions and separations. In the end, the four heroes reunited, fought against difficulties together, and finally succeeded.