It tells the love story of a wandering translator and a cultural relic restorer.

Shao Xue, Zheng He and Zhang Qi are the children of craftsmen who restored the cultural relics of the Forbidden City. They went through the SARS years together, their elders passed away, the ancient city was demolished, and they grew up in the hutongs of old Beijing.

When the three children had their childhood friendship, they chose completely different paths because of their differences in personality.

Influenced by Su Nian's mother, Shao Xue was unwilling to give up the infinite possibilities of the future for love, and chose to fly away. Su Nian chose to inherit her mother's wishes and take over the cultural relics restored by her mother before her death, so as to perceive time and gain strength from the immortal cultural relics.

Because of her talent in mathematics, Zhang Qi chose to bury her feelings for Shao Xue on the eve of studying abroad.

Shao Xue and Zheng Su-nian, who have determined their intentions and pursued their own goals, finally parted ways on the occasion of the Olympic Games.

When the grass is withered, youth is perishable.

A few years later, I ran away and ushered in the return. Everyone seems to have the best life.