In the bustling Mingcheng, technological elite Lu Cheng and up-and-coming designer Su Ruan reunited because of work. Lu admitted that Su Ruan was the girl next door who followed him when he was young, but Su Ruan lost his memory due to an accident and had no memory of the past. Frequent contacts at work caused Lu Cheng's special care to arouse discussion among colleagues, and Su Ruan also deliberately distanced himself due to misunderstandings. The project crisis broke the deadlock, and Su Ruan's memory began to shine. Returning to the small town to search for memories, she finally remembered her past with Lu Cheng. When they are side by side and ambiguous in the workplace, there are twists and turns due to misunderstandings on the eve of the confession. After resolving the misunderstanding and confirming their feelings, the two worked together to overcome the workplace turmoil, met their parents, and made step by step the promise they made when they were young.
