"After putting down our phones, can we still see the beauty around us?" 12-year-old Xu Yihan is a lonely, self-proclaimed mature girl who is addicted to the Internet. She always thinks her classmates are childish and boring. She thinks she is a little adult and doesn't fit in with her peers. She cares more about the fans and likes on Instagram than whether her peers get along well with her. Her busy mother, Lin Xinyi, lives with Yihan. The place where the mother and daughter meet most often is the dining table. The most similar thing about the two is that they "focus on their phones." The two people at the "silent dining table" are each other's most unfamiliar relatives! With the winter vacation, Yihan's life turned to a daycare center. One time, she accidentally discovered the "traffic password" that can increase fans and likes on Instagram. On the other hand, classmate Zhang Youjie has no idea about love and always has an inexplicable affection for Yi Han, but he feels strange about this feeling. At the same time, Yi Han meets a new person on the Internet and finds the sincerity and attention that she could not get in the past. The simple Yi Han also gradually walks into the unknown world of "adults".