What a happy ending. .
In a word, the wishes of the two protagonists (Yu and Qin Lang) have come true: 1. Shandong went to Taibei to find Xin Lei and brought it back to Shanghai. Xin Lei found her parents with the help of Shandong. Shandong proposed to Xin Lei, and Xin Lei agreed because of her parents. Qin Lang had an in-depth talk with Xin Lei's mother. Xin Lei's mother let Xin Lei make her own choice. Finally, she chose Qin Lang to live with her at 69 Xing Wu Street. 4. Qin Lang found his own biological father, but his father was ashamed of his wife and children and refused to recognize Qin Lang and his son. 5. Qin Lang's graffiti shoes sell well and continue his painting career.