On the train home, Xingxing thinks a lot about what dingyi said to him. He can't really remember what he was saying, but he does remember that it was about the promised day. He tells ziyu that he's going to a cafe to study with Lin, and that he hopes to see him soon. He also tells nan that he hasn't seen his son in a long time, and he tells him to come home early. .
On the train home, Xingxing thinks a lot about what dingyi said to him. He can't really remember what he was saying, but he does remember that it was about the promised day. He tells ziyu that he's going to a cafe to study with Lin, and that he hopes to see him soon. He also tells nan that he hasn't seen his son in a long time, and he tells him to come home early. .