In 1975, Su Wan, a girl from Shanghai, went to the countryside as an educated youth to the Red Star Production Brigade. Faced with the difficult days of eating coarse grains and heavy farm work, she unexpectedly awakened to a portable space, which contained food, medicine and daily necessities. She used space to quietly improve her life, and also helped villagers solve problems such as seed shortage and family illness, and gradually won everyone's love. Agricultural technician Lu Yan noticed this tough and gentle girl and silently helped her adapt to farm work and withstand the wind and rain. Lin Weiwei, an educated youth from the same batch, was jealous and spread rumors that Su Wan was "engaging in special affairs" and "climbing high branches". Su Wan and Lu Yan worked together to clarify the rumors. When the college entrance examination resumed in 1977, the two encouraged each other and eventually entered college together. In the wave of the times, they gained love and a future.