Watch on HDtoday. In-ho, in a rush to reach a meeting, unexpectedly boards a train in Mongolia, where he encounters Ano his first, unrequited love. The great mystery is that Ano died in a car accident three years earlier; yet, she looks exactly as she did in the past and recognizes him instantly. Upon discovering that the years 2022 and 2025 have become intertwined, In-ho leaps from the moving train with her in his arms, attempting to save her from her tragic fate.