Impression words express impressions about music pieces and are separated into groups called impression axes. A calibration map is used that contains information about the relationship between the user’s head orientation and where they are looking with their eyes at each calibration point. The inflator is arranged such that at least a portion of the inflator overlaps with the roof reinforcing member, and a depth of the rear concave portion overlapping with the inflator is shallower than that of the front concave portion positioned nearer the center pillars.