The video shows a person's hand using a marker to color in a drawing of a character's hair. The character appears to be a male with spiky hair, and the hair is being colored in black. The person's hand moves carefully as they fill in the hair, ensuring that the color stays within the lines of the drawing. The marker used is a thick-tipped one, which allows for a bold and even application of color. The drawing itself is detailed, with the character's facial features and muscular build visible. The coloring process is meticulous, with the person taking care to avoid smudging the ink.