1. A method for providing mixed reality contents for learning through a story-based virtual experience, comprising: capturing a user image of a user within an actual environment; setting an action zone within a virtual world in which a 3D image of the virtual world having the story is synthesized with the user image and setting a corner coordinate of the action zone as a reference point for the action zone within the 3D image of the virtual world; tracking a user position from the user image and calculating the tracked user position as four rectangular corner coordinates; converting the four rectangular corner coordinates into a 3D coordinate; matching the 3D coordinate to the corner coordinate of the action zone; and displaying a synthesized image of the user and the virtual world that is based on matching the 3D coordinate to the corner coordinate of the action zone.