The purpose of this study is to analyze the characteristics of schools that support students in crisis of school dropout, and to draw implications for what efforts should be made to create a school guaranteeing equal education to all students. For this purpose, qualitative case study was conducted by selecting three excellent schools for the prevention of school interruption. As a result, five categories were derived for the characteristics of schools. Leadership (a democratic principal who presents a vision), school culture (active communication and discussion), teacher professionalism (a coordinator with expertise), abundant resources (sufficient budget and efficient operation, networks with community), programs (relationship building program, individual consulting program). This school environment category can be theorized as a condition for successful educational activities. Based on the results of case analysis, the meaning of ‘a school supporting minority students’ was discussed. First, it has an expanded meaning of ‘realization of school democracy’ by emphasizing educational growth for all students and strengthening democratic citizenship capabilities. Second, it suggests that universal educational welfare and selective educational welfare should be viewed as a relative and continuous concept, not as a dichotomous distinction. Third, it means that a paradigm shift based on a growth model rather than a deprivation model is needed in educational welfare policies including policies to prevent school dropouts. Ultimately, by aiming for a democratic school that supports minority students, we ensure that all students develop their human values and potential regardless of their background, ability, identity, and pace of growth and learning path. Through the process of forming the belief that all students should be respected, we will be able to move toward an inclusive education and an inclusive society.