Dreaming of making a way station for his sister and the villagers who have no choice but to commute along the dangerous train tracks every day, Joon-kyung sends many letters…

Amid a tense inheritance fight, a charming heir clashes with his hardworking employee who’s known for her irresistible smile — which he cannot stand.

A story of two couples’ journey of new love, loss and unexpected reunion spans decades, from the 1970s through present day.