In the summer of fifth grade, Qiao Qiao had to shoot a vlog with his family to complete his summer homework. However, his parents were busy with work and the progress was stagnant. When he was distressed, he met his uncle who made a living by holding signs and lived in the park. With a flash of inspiration, they slowly filled each other's missing warmth during the picnic. The issue of homelessness in the film is different from a serious and profound perspective. Instead, it uses a cheerful approach to lead the audience to watch the living environment and placard-raising work of the homeless from a child's perspective.