The video shows a boy assembling a cardboard structure for his younger sister. The boy is wearing a striped shirt, glasses, and black shorts, and he is attaching cardboard pieces to the main structure. The girl, wearing a blue shirt and her hair in a ponytail, is inside the structure, smiling and reaching out to her brother. A baby, in a white onesie, is standing near a closet filled with clothes, watching the scene. The structure has cartoonish designs and text printed on it. The environment appears to be a home, with wooden floors and a sofa visible in the background.