This paper addresses the concept of new self-supporting strategies at social welfare agency, defined as search leading to unintended discovery. It conceptually delineates new self-supporting strategies, showing how those are related to the social enterprise on prior knowledge search. The study also discusses how new self-supporting strategies of the social enterprise relate to some aspects of ownership structure, decision-making structure, social capital, and entrepreneurship. For this study, we conducted in-depth interviews at ‘A human’ and ‘B housing’ coming from self-help community in Jinju city. The finding is as follows. Firstly, social enterprise tends to have a positive effect on the self-sufficiency for low income class and the local economic vitalization. Secondly, it is found that ownership structure, decision-making structure, social capital, and entrepreneurship show meaningful relations with the continuous competitive advantage of the social enterprise differing from profit organization. Thirdly, we found that the social enterprise needs the social welfare agency to achieve self-sufficiency and the continues competitive advantage for a log time. Finally, we found that there is the contradiction between the undemocratic social context and the social enterprise’ aspiration to become a truly democratic organization.