Xiao Lin, son of Lin Yan and A He, possesses a gentle and steady disposition, inheriting his father's mechanical mindset and pragmatic character. Immersed since childhood in knowledge of agriculture and farm tool improvement, he is skilled at observation and innovation, remaining calm and unflustered in the face of difficulties. With the original aspiration to protect the village and benefit the people, taking technology as a bridge to continue the goodwill of the older generation, he becomes the inheritor and pioneer of agricultural wisdom.