Yuanyuan's journey begins with the innocent fascination of a five-month-old baby, captivated by the enchanting allure of bubbles. In that seemingly ordinary moment, a profound spark ignites within her, transforming her world into a kaleidoscope of iridescence. From that day forward, the radiant glint in her eyes becomes a testament to an extraordinary dream – to blow the most colossal bubbles imaginable.

However, Yuanyuan's aspirations clash with her father's pragmatic desires for her future. He views her fixation on bubbles as a whimsical and transient pursuit, yearning for her intelligence to be channeled into a more socially impactful endeavor. Their city faces imminent decline, caught in the throes of a slow demise, yet Yuanyuan remains fixated on her singular goal of crafting ever-larger bubbles.

As father and daughter grapple with conflicting visions for her future, Yuanyuan stumbles upon a breakthrough. Through tireless experimentation and dedication, she discovers the secret to conjuring bubbles of colossal proportions – bubbles that transcend the limits of imagination and, perhaps, have the power to reshape the destiny of their ailing city.