Jiao Jia Ren was saved by pediatrician Gu Li Feng as a child and followed in his footsteps as a young adult. Aware of her talent and potential, Gu Li Feng, now the director of the top children’s hospital in the city, bends the rules to take her in as a registrar. Surrounded by a group of elite specialists at her new workplace, Jiao Jia Ren is no longer the cream of the crop and works extra hard to make up for the gap in skill level. Jiao Jia Ren and her colleagues Deng Ziang, Gu Jia Ren, and Wang Hang goes through many challenges. They not only have to fight the disease on the front line of the clinic, but also face various difficulties in life. They learn and mature and grow into competent specialists to protect and serve children wholeheartedly.