In 2012, 16-year-old Guo Ziyang greeted his family as usual and went to school with his schoolbag on his back. Before going out, his brother smiled and told him that today was his 26th birthday and asked him to come back early. He waved impatiently, but what he expected was the news that his brother was missing. His brother just disappeared from home, and no matter how much he checked, there was no news;
In 2012, 15-year-old Zhou Fan won the National Mathematical Olympiad championship. He happily ran back to his adoptive home to tell the policeman the good news. When he opened the door, except for the still warm teacup, the house was empty. From then on, it was as if this person had never existed. No such person was found;
Ten years later, when Guo Ziyang and Zhou Fan appeared on a black train, the truth of ten years ago slowly emerged.
Concept: Family, love and friendship, cp stew