Original work and original drama
It is set three years after Shi Jin was discharged from the army. Wu Liuyi was discharged from the army due to a leg injury.
Over the past few years, the two of them have been writing letters to each other.
One night later, Wu Liuyi stepped on the train looking for him, but things quietly changed.
Concept: That's awesome. I love it. I don't know what the concept is.