Zhu Yiran, who inherits the traditional craft of Suzhou fan-making from her grandfather, crosses paths with her childhood friend Shen Feng, now a cellular structure engineer recently returned from abroad. Together, they work to protect and preserve the blend of ancient traditions and modern innovations in Suzhou’s evolving story.

朱依然从爷爷的手中传承下苏扇的制作技艺，并在非遗集市上重逢了当年的青梅竹马沈枫，彼时他已经是从国外归来的古城细胞结构工程师，两人携手共同守护着苏州的古与新的故事。