A century-old locust tree and an engraved silver bell bind together a young romance from the Republican era, along with half a century of devotion and longing. Su Yanzhi heads north to study, hiding his yearning in sketches and letters, never knowing that his messages will never reach her. Shen Nianhe stays behind in the old courtyard, weaving her deep affection into sweaters and years of waiting, alone beneath the locust blossoms as she longs for his return. Rumors keep them apart, and mountains and seas lie between them. The lovers miss each other for half a lifetime, leaving only a silver bell and sketches as tokens of the longing each keeps hidden for a lifetime.
They meet again in old age. The locust tree still stands, and its fragrance remains unchanged. Though the lost years cannot be reclaimed, the warmth of having each other is enough. Later, four generations of the Su family take turns guarding the old tree, passing down its stories and carrying on its legacy of love. Their private devotion in a little courtyard becomes part of the whole town's cultural heritage. From the Republican era to the present day, from passionate love to a legacy passed down through generations, the bittersweet past and comforting present are all held in the lingering fragrance of locust blossoms and the clear chime of a bell. It is a moving, reassuring tale.
