In high school, Zhang Mianmian and Zhao Donglin were roommates. From dislike to each other to secret love, they parted ways due to a misunderstanding on the eve of the college entrance examination. Ten years later, 28-year-old Zhang Mianmian was already the creative director of an advertising company, while Zhao Donglin became the technical director of a technology company. The two reunited unexpectedly during an important project. They looked calm and professional on the surface, but had ups and downs on their hearts.
Zhao Donglin handed over a personal business card: "We haven't seen each other for ten years. You owe me an explanation, and I owe you one." Zhang Mianmian pretended to be calm, but couldn't ignore that she was still so nervous because of him that the tips of her ears turned red. As the project progresses, the two are forced to come into frequent contact, from tit-for-tat to ambiguous testing, and sweet memories and painful misunderstandings from high school emerge intertwined.
When workplace crises, ex-boyfriends' troubles, and family obstacles ensue, the truth that has been hidden for ten years is finally revealed - it turns out that Zhao Donglin's "betrayal" was a helpless protection, and Zhang Mianmian's stubborn escape also made him wait for many years. This time, can they overcome the misunderstanding and let the love of their youth sprout again at the age of twenty-eight?
Intent: Misunderstandings in youth should be resolved with the courage of adulthood; missed love deserves a second chance.