The video shows a close-up of a person's fingernail painted with a shiny purple nail polish. The person is using a small brush to apply a white substance on the nail, creating a design. The white substance is applied in a curved line that starts from the base of the nail and ends at the tip. The person's hand is steady as they carefully apply the white substance, ensuring that the line is even and smooth. The purple polish provides a stark contrast to the white substance, making the design stand out. The video ends with the completed design, which is a simple yet elegant white line on the purple nail.