(Full Synopsis)

Set across 1983 and 2000, the musical unfolds in Seoul and a high school setting, where a man’s first love appears to return to him in another life, forcing him to confront memory, grief, and social judgment.

In the summer of 1983, In-woo, a university student who does not believe in love at first sight, meets Tae-hee when she suddenly jumps under his umbrella on a rainy day. Her boldness, beauty, and vivid presence quickly overwhelm his heart. After searching for her and finally finding her again on campus, the two grow close and become lovers. Their romance deepens through small, intimate moments, but their happiness is interrupted when In-woo must enter military service. Tae-hee promises to see him off at Yongsan Station, yet on her way there she dies in a traffic accident, leaving In-woo with only the memory of their love.

Seventeen years later, in the spring of 2000, In-woo is now a Korean literature teacher at a high school, married, and outwardly living a different life, though he has never truly forgotten Tae-hee. Among his students is Hyun-bin, a boy whose gestures, habits, and possessions uncannily resemble Tae-hee. He spreads his little finger the same way she did, carries a lighter engraved with her face, and even asks the same questions she once asked. As In-woo becomes increasingly shaken by these similarities, he comes to believe that Hyun-bin is Tae-hee reincarnated.

Unable to suppress his emotions, In-woo is drawn toward Hyun-bin, and rumors spread through the school that he is a homosexual teacher obsessed with a male student. Hyun-bin, hurt and confused by the ridicule, lashes out at him. But when In-woo breaks down in tears and asks why Tae-hee does not recognize him, Hyun-bin begins to recover the memories of Tae-hee’s former life. In the end, In-woo loses his job and his family. Later, he encounters Hyun-bin at the platform of Yongsan Station, where he and Tae-hee were meant to meet seventeen years earlier. Together, they leave for New Zealand, the place Tae-hee had once wanted to visit, and go bungee jumping.