Summary
A successful 33-year-old executive, Joo Sihyeon, decides to complete his high school education. Balancing corporate duties and coursework, he finds his homeroom teacher is Eun Haim, who is initially overwhelmed by her new responsibilities. She soon realizes he is the same man she had a brief, memorable encounter with during a trip to Canada. Their unexpected reunion in a classroom setting blurs professional boundaries, creating a complex and deeply personal situation for them both.