"On Your Wedding Day (2018)" follows the journey of a young man named Woo Yeon as he navigates the complexities of love and relationships. With dreams of reuniting with his high school crush, Seung Hee, on her wedding day, Woo Yeon's motivations are driven by a nostalgic longing for the past and the pursuit of true love. The central conflict arises as he grapples with his feelings and the bittersweet nature of unrequited love. This romantic drama delves into themes of friendship, second chances, and the passage of time, offering a heartfelt exploration of the intricacies of human emotions. The film's overall vibe is one of nostalgia, mixed with a tinge of melancholy and hope, as Woo Yeon reflects on his past experiences and contemplates the possibilities of the future. "On Your Wedding Day" captures the essence of youthful romance and the enduring power of first love in a poignant and captivating manner that resonates with audiences.