At the turn of the 20th century, three teenage boys chase the thrills of youth, friendship, and first love, unaware that the moments they treasure will soon become bittersweet memories of a time they can never return to.

• He Hongshan
• Yang Le
• Bai Jingting
• Cai Wenjing
• Du Weihan
• Qin Yu
• Wang Zheng
• Su Xin