The story of Zhang Xiaoran during her youth at Tianbao high school with her best friends, top student Zhu Chenghai, the energetic Lin Tao, spirited Xiang Nan, and the sluggish Zhao Rui.

• He Yu
• Chen Yixin
• Li Jiahao
• Niu Ze-Meng
• Tan Jiatai
• Tan Xiaofan