To solve problems that cosmetics purchased does not satisfy a user's taste when actually used and that change in a hair style turns out to be a failure by cutting the hair too short or selecting wrong colors for dyes.

With the actual own face displayed on a screen of a personal computer as a three-dimensional image, makeup is simulated on the image using colors of actual cosmetics in accordance with an actual makeup process. In addition, a hair style is also simulated by cutting hair to a desired length, dying hair in preferred colors, curling hair, or the like. Thus, simulation is performed on the user's own three-dimensional image.