In the early 1980s, there were five girls who had just entered the Chinese Department of Wuhan University in the 205 girls' dormitory. Kuang Yalan is a strong girl. She didn't want to be a burden to her foster mother, so she just scraped through high school by doing odd jobs. Xin Gan was loved by his parents in a superior family environment and was very headstrong. Song Ge is a class cadre. She respects teachers and loves labor, but she lacks trust and enthusiasm for her comrades in arms. Yu Xia is timid and simple, with the temperament of a poet. Luo Xuemei from the countryside is gentle and kind.

On the first day of meeting, Xin Gan and Kuang Yalan fought for bunk beds. Song Ge quietly told the teacher that when the teacher came, they suddenly made up. Everyone is dissatisfied with Song Ge's behavior.

At the meeting to evaluate grants and hardship allowances, everyone found that Kuang Yalan was an orphan and unanimously agreed to give her a first-class grant and living allowance. On the contrary, this made Kuang Yalan immersed in painful memories: it turned out that in the past political storm, her mother exposed her father, abandoned their father and daughter and remarried others. When she was 10 years old, her father died in an accident. She is determined to write her experience into the novel The Daughter of the Mountain. At the school seminar, Xin Gan was attracted by the speech of Wei Lan, a boy from the chemistry department, and fell in love with him. But when she jumped the queue and learned that Wei Lan had a girlfriend, she overcame the pain of lovelorn and devoted herself to intense study. Because of Song Ge's one-sided report, Kuang Yalan's scholarship was downgraded, and she had to work at the dock to make a living. The students angrily went to the headmaster to complain.

At the school party, Kuang Yalan accidentally met his mother-that is, Xin Gan's mother. Mother tearfully asked her to forgive her mistake, but Kuang Yalan couldn't forget the pain and injury suffered by her father and herself, and refused the 300 yuan money her mother gave her. At the second scholarship seminar, students misunderstood Kuang Yalan because of the 300 yuan. Kuang Yalan had to tell her the last thing she wanted to mention, and then she left in tears. Everyone knows that the novel The Daughter of the Mountain was written by Kuang Yalan herself, and everyone is shocked by her stubborn character of not suffering from fate. On the dock by the river, the students found Kuang Yalan moving bricks.

A short semester passed, and five girls in dormitory 205 finally established a profound friendship on the basis of mutual understanding.