Due to the difficulties of speech recognition and natural language processing, it has been difficult for robots to change dialog focus naturally against users, or to maintain continuity of focus so that users can keep attending to the conversation. This study focuses on how to make users accept discontinuity in focus of dialog even when robots fail to naturally change it. By using multiple robots and inserting interactions between robots as if they reach an agreement about a new focal point, we

more »

... can spare time for users to gradually follow the changes in focal points without any changes in the amount of information. Thus, it is expected that the users less care the discontinuity of focus of dialog and can more easily keep talking with robots. In this paper, we demonstrate multiple robots which take conversation with a user and realize such interaction in the dialog.