In a small town years ago, a young girl named Lune falls deeply in love with Cionne, a playboy and enigmatic boy. Their love blossoms in the warmth of spring, full of promises and stolen moments. But Cionne remains haunted by the ghost of his past love, unable to fully commit to Lune, despite her unwavering affection. Unable to compete with the memory of his ex, Cion distances himself, leaving Lune heartbroken and confused.
After their painful separation, Lune moves on with her life, becoming a compassionate doctor, while Cionne, though still holding on to his past, struggles with unresolved emotions. Time passes, and the world moves forward.
Years later, fate brings them together again, but this time in the sterile, fluorescent-lit halls of a hospital. Lune is now a skilled doctor, and Cionne has become a dedicated nurse. The reunion is unexpected, yet charged with the old, unspoken emotions that linger between them. Lune still carries the weight of their unfinished love, while Cionne is now at a crossroads, realizing that his feelings for his ex were not as strong as his unresolved connection with Lune.
As they navigate the busy hospital wards, they find themselves drawn to each other once more, the old feelings reigniting with every shared glance and every moment spent in each other's company. Their journey is not easy, as they must face the complexities of their past, the ghosts of old relationships, and their own personal growth.
"The Backup Heartbeat" is a story of healing, redemption, and the second chances that life sometimes offers. As the two work through their emotional scars and rediscover the love they once shared, they must confront the painful truth that sometimes the past never truly leaves us-but it can be redefined with new beginnings.