Q. What Is the Difference Between the Student（@s.thers.ac.jp）and Faculty/Staff（@f.thers.ac.jp）THERS Accounts?
A. In some cases, students who have an employment relationship with the university—such as short-term administrative assistants—may be issued both a student account (A3 license) and a faculty/staff account (A1 license).
Please use your student account (with an A3 license) for activities related to your role as a student.
The faculty/staff account (with an A1 license) should be used only for tasks related to your employment at the university.
Reference: Types of THERS Account Domains