An old dream at the seaside was a brief reunion between Wu Xiaoye and her. In the dream, she was wearing the dress she wore when they first met, and she was blaming him for not taking care of her. But her words "you are already lost" finally broke through the dream, leaving only a room filled with smoke and alcohol, and wet tears at the corners of her eyes.
A belated letter revealed her worries and regrets about being away for a year, and also revealed her half-life-long wish - to find her biological parents and have a family. As an abandoned person, Wu Xiaoye didn't understand why she was obsessed with people who didn't love her, but she still packed her bags and boarded the train to Dali with this thought.
Intention: Even if the abandoned children are wandering around the world and relying on each other, they will still break free from sinking after loss because of love and obsession, rush to the unfinished return journey for the deceased, and complete self-salvation in loneliness.