Co-op is a cooperative in which students and faculty members living at universities share capital and organize and operate. Members of the union not only use co-ops but also directly participate in their operations. In the cafeteria on the first floor of the Student Welfare Hall and the Purchasing Department on the second floor, the product lineup and menu are being improved one after another.

At the "New Student Welcome Gathering" held mainly by the Co-op Student Committee, many new students say, "I made friends" and "I understood my university life" every year. We are also actively introducing homes for new students. We are also working on health and safety-related projects, such as alcohol patch tests, body fat percentage measurements, dietary consultation, and blood donation.
You may encounter unexpected disasters while attending school, such as hospitalization or going to hospital due to an accident or illness, fire or disaster at a boarding house. In such a case, the co-op calls for participation in the “Student Comprehensive Mutual Aid”, in which mutual aid is paid, and 95% of the union members have joined this.
In the co-op Internet provider business, access points have been set up in Shimonoseki, making it easier to purchase Japanese books, foreign books, CDs, stationery, PC software, etc. through Internet shopping.