The video features a person coloring a sketch of a mermaid in a notebook. The mermaid is depicted with long hair, a bikini top, and a fish tail. The person uses markers to color the mermaid's hair, eyes, and tail. The video captures the coloring process in detail, showing the person's hand movements as they fill in the colors. The background of the video is a plain white surface, and the notebook is placed on a desk.