A terminal information acquisition unit (11) acquires information including location information of a terminal device (10), directional bearing information of the facing of the terminal device (10), and terminal orientation information of the terminal device (10). A camera unit (12) generates a camera image that captures a periphery. A depicted history computation unit (14) computes action history depiction information to be displayed, on the basis of a previously acquired action history and the image captured periphery of the camera unit (12). An image composition unit (15) generates a composite image that depicts the action history depiction information upon the camera image. A display unit (16) displays the composite image that the image composition unit (15) has generated.
Portable terminal, action history depiction method, and action history depiction system