Jiang Ping, who has graduated from graduate school, received an invitation to go to Kara City to complete her doctoral studies, and at the same time help develop the "KL" virus vaccine. She met Mu Yunchu, a law student who graduated with a doctoral degree. Mu Yunchu chose to secretly go to Kara City to cooperate with the Kara government to find out, despite his father's obstruction.
Purpose: to save lives and heal the wounded