An information processing device 1X mainly includes an emotion acquisition means 14X, a deviation tendency identification means 16X, and an output control means 17X. The emotion acquisition means 14X acquires a set of target emotion, which is a target of emotion of an object person, and actual emotion, which is actual emotion of the object person. The deviation tendency identification means 16X identifies a deviation tendency between the target emotion and the actual emotion with respect to a mental state, based on the set of the target emotion and the actual emotion. The output control means 17X outputs information regarding the deviation tendency identified by the deviation tendency identification means 16X.