Terminal information acquiring unit 11 acquires information including direction information and the position information of the terminal device 10 is directed, that the terminal device 10, and a terminal position information of the terminal device 10. The camera unit 12 generates a camera image taken around. Depiction history calculating unit 14 calculates the activity history acquired in advance, and the imaging range of the camera unit 12, the action history description information to be displayed based on. Image synthesizing unit 15 generates a composite image obtained by the camera depicted in the action history image description information. The display unit 16 displays the composite image that the image synthesizing unit 15 generates.
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