Social structures are changing due to evolving lifestyles and AI technologies, making technologies that support the social participation of all people, including the socially vulnerable, urgently needed. Social robots, which can take on human roles as members of society and support society, are expected to address this need. While robots that can converse with individuals have advanced, robots that can connect people and society require research into human-like social skills. Our laboratory studies the requirements for robots to be accepted and contribute to society, as well as the societal changes and problem-solving that result from their introduction.