This course aims to examine the reality and potential of Social Entrepreneurship through theory and case studies, as well as to develop problem-finding and problem-solving skills and leadership through the course work. I have been teaching Social Entrepreneurship at Keio SFC since 2011, The understanding and expectations of social entrepreneurship have changed dramatically, and the number of social entrepreneurs as a solution to social problems has increased. When social entrepreneurship was a nascent phenomenon, this course is focused on explaining how we should view social entrepreneurship and what its value was. However, based on the progress in understanding the reality of social entrepreneurship in society, we are strengthening the point of learning through the process of understanding the phenomenon of social entrepreneurship.