Yu Wanqing, a modern environmental engineer, was involved in a car accident while saving a child and woke up as Yu Xiaohe, a rural girl in 1972. Facing a poor but warm family, she turned modern knowledge into spring rain: using chemical formulas to improve soap, using mechanical principles to transform farm tools, and turning disaster prevention experience into life-saving prescriptions.
When technology collides with the simplicity of the times, and when rationality encounters local wisdom, she and Cheng Yanzhou, a returned educated youth, write their love between drawings and wheat ears, and find a balance between the collective and the individual. From family workshops to village-run factories, from questioning and rejection to sincere support, a seed from the future will finally bloom in this land of sincerity and change the times.