When a first period in which communication is performed by a first interactive communication unit and a second period in which utilization data is utilized have a period overlapping with each other, the utilization data are correlated with interactive communication content data, which are contents interactively delivered in the first period, by a correlation giving unit. When interactive communication is performed by the first interactive communication unit, the previous interactive communication content data are searched out using information on an interactive communication partner of the interactive communication as a search condition, thereby outputting the interactive communication content data and the utilization data correlated with the interactive communication content data by the correlation giving unit.