Qin Chuan and Xie Qiao grew up in the same compound. They have been bickering with each other for ages. Qin Chuan is simple and does not mince words but he always stands by Xie Qiao and will always be her most important friend. No matter where life leads them, they will come together.
An Jing is a senior girl living in the small town of Songxi. During the process of independently writing a school novel entitled "Goodbye, Seventeen", she takes on the roles of An Na, An Qi, and An Jing, the protagonists of three separate stories. She travels through different spaces and times and meets different classmates, including the timid Straight-A-Student Han Yun, the warm senior Chu Yu, and the twin brothers Cheng Hao xuan and Cheng Hao yu, who have very different personalities. From strangers to friends, they find friendship in the intense high school life, and together they go through the bitterness of adolescence to finally welcome the transformation moment of 17 years old.
An old coffin painter, whose son was murdered, waits for the killer to leave prison. A mother and her daughter move to his neighborhood, which changes him. Will he still want vengeance?