Lisa, an art student, and Anthony, a top student, had a mutual crush in high school but missed their chance due to a misunderstanding. Five years later, they reunite on the same high-end residential project, now working as an interior designer and a structural engineer, respectively. Their professional philosophies clash fiercely—Lisa prioritizing "aesthetic and emotional considerations" while Anthony emphasizes "safety and efficiency." This, coupled with past misunderstandings and new emotional suspicions, brings their relationship to a standstill. Lisa's best friend, Anna, intervenes, encouraging them to communicate honestly and resolve their issues. They not only collaborate to optimize the design plan and complete the project but also finally realize their long-standing mutual affection, culminating in a workplace romance that transforms from misunderstanding and conflict to a lasting partnership.