This is an installation documentary created in 2015. The quiet process of making boxes indoors reflects the author's patience and caution, the narration when the screen is black reflects the author's familiarity and confidence in what he wants to express, and the dodging perspective and trembling picture when facing the crowd outdoors reflect the photographer's cramped and alienated. A lot of things happened after 2015, and the film was re-edited. The current version has almost used the best materials of that year.