In Southern Vietnam, 1997, a student named Thư finds his footing through early friendships and small secrets. As a child, he becomes neighbors with Tiểu Li, a lively girl who shares the block with him. Thư prides himself on being clever, and their companionship is full of playful, sometimes cheeky moments. When [Tiểu Li] and her family move away, Thư is heartbroken, and he clings to a secret notebook that serves as a keepsake of the time they spent together, a quiet treasure that reminds him of a simpler, more innocent bond.
Years pass, and Thư grows taller and more complicated feelings begin to bloom in his heart. He falls for another classmate, Việt An, a girl with a gentle smile and a sharp mind. He borrows a book from her and fills its pages with song lyrics, hoping to win her attention. When [Việt An] discovers the poems, she tells him to return with a new book, and so Thư retrieves another volume and stays up late to finish it. He also learns that she has a fondness for candy, which leads him to buy sweets for her every day. But [Việt An] isn’t alone in his affections—two close friends, Chieu Minh and Hong Hoa, are part of her world, and Thư finds himself purchasing treats for all three of them, a move that drains his money but also weaves him deeper into their circle.
Seeking guidance, Thư turns to his best friend, Hai. Despite his best efforts and the advice he receives, his pursuit of [Việt An] remains a winding path, and he often finds himself missing the simpler, earlier bond he had with [Tiểu Li]. When [Việt An] falls ill, Thư volunteers to take notes for everything she misses and visits her to help. This devotion comes with a price: his own studies slip, and a teacher notices, even uncovering a love poem Thư wrote for [Việt An]. Though she scolds him, she still agrees to go to the movies with him, hinting at a fragile, hopeful connection between them.
The social web tightens around Thư as romance grows not only for him and [Việt An], but also for [Hai] and [Hong Hoa], who become a couple in their own right. Amid the sweetness of these growing relationships, a secondary story unfolds: [Chieu Minh] shares a tender bond with her Physical Education teacher, Luc, and their drama centers on a threatened future when her fragile heart is at risk. To help, Luc brings her to the city for treatment, underscoring the themes of care, risk, and perseverance that thread through the film.
As time passes, Thư and [Việt An] eventually become a couple, and the film makes space for the parallel, evolving romance between [Hai] and [Hong Hoa]. Yet a misunderstanding strains Thư’s trust, culminating in a tense moment when he brings [Việt An] home to show her his secret notebook. He misreads a moment, thinking that the papers inside the notebook are being used to craft paper boats, and in a flash of frustration, he tells her to leave. Only later does he realize that the boats were meant to be blank pages—a poetic reminder of beginnings and possibilities still available to them.
The turning point comes on a bridge, where [Việt An] reveals a truth that changes everything: she is, in fact, [Tiểu Li], the childhood friend who haunted his earliest memories and the person he has waited to find again. The revelation lands with a warm clarity, and Thư’s world shifts—what he believed was destiny now feels like a perfect reunion with the past and a natural, enduring soulmate. In the end, the story blooms into a quiet, lasting connection that celebrates how time can circle back to the people who mattered most, confirming that love, memory, and loyalty can stretch across years and distance to find their true home in the heart.
In this heartfelt, multi-layered coming-of-age tale, every character’s moment—from the shy, earnest Thư to the bright, resilient [Việt An], the steadfast [Hai], and the catalytic presence of [Chieu Minh]—converges into a single, luminous truth: the person you were with as a child may very well be the one you were meant to become with, and the journey there is as tender as it is transformative.
