Under the lemon tree, the entire childhood of Song Zhining and Shen Yichen is hidden. They are the graffiti on each other's homework books, they are side by side on the way home from school, they are the sweet and sour taste of sharing a lemon fruit in midsummer - the tacit understanding between childhood sweethearts, from school uniforms to suits, has never dissipated.
The noisy bickering on campus, the secretly handed hot milk, and the shouts of cheer at the sports meeting have all become sweetness engraved in time. The brief estrangement between the two places after growing up was just for a better reunion. When the neon lights of the city lit up, Shen Yichen held Song Zhi Ning's hand, as naturally as in countless summers: "We agreed that we will spend the rest of our lives together in Lemon Fruit Summer."
From childhood sweethearts to staying together for a lifetime, this is a two-way journey across campus and the city, with sweet and sour intertwined, and finally complete.
Concept: two-way love