1. A head-mounted display device with which a user can visually recognize a virtual image and an outside scene, the head-mounted display device comprising: an image display unit configured to cause the user to visually recognize the virtual image; a specifying unit configured to specify procedure information, which is information representing a series of action procedures, using a virtual object to be displayed in addition to a real world, the specifying unit specifying at least a singularity of kind of the procedure information out of a plurality of kinds of the procedure information prepared in advance; and an acquiring unit configured to acquire the specified procedure information and incidental procedure information, which is the procedure information incidental to at least one of kinds of the procedure information before and after the specified procedure information and cause the image display unit to form the virtual image representing the virtual object included in at least one of the acquired procedure information and the incidental procedure information.