Three years ago, one was single, one was married with a child, and one developed inexplicable feelings they had no way to express, while the other was trapped in a marriage, depressed and on the verge of collapse. The moment he learned of her feelings, she fled in a panic. Her life was already too complicated to sort out... After that, he heard nothing from her for three years. They lived in different places and each started a new life. Perhaps their fate had run its course...