The parents of An Ran (played by Zhang Zifeng),the protagonist in the film Sister, in order to have a son, lied that An Ran was a cripple. When the examiner found out the truth about her health condition, her father even fiercely beat her. After the college entrance examination, An Ran enrolled in the clinical medicine program in Beijing, but her parents secretly changed it to the nursing program in her hometown, arguing that” girls should earn money earlier to support thr family”. T attend a graduate program in Beijing after college life seems to be a good choice for An Ran to get rid of her parents. However, her parants’ death in a car accidet left her with a little brother of six years old. An Ran, who was a clear career expectation, now struggles in the dilemma of caring for her estranged brother or pursuing her personal ambitions. gwen, ona quest to end the tyrannical rule of Lord Redmane under the guidance of a Black Armour (played by Guo Jingfei). But through a strange twist of fate, the fantasy world of the novels begins to impace the real world, leading Guan Ning (played by Lei Jiayin) to accept a mission from Tu Ling (played by Yang Mi) to kill the author.