This Graduate Schools was established with the aim of providing education and research consistent with the undergraduate level, with the faculties and departments as its parent institution, with the objective of "teaching and researching academic theory and application, exploring its depths and contributing to the advancement of culture at large, based on Christian character education."

The Graduate Schools consists of Graduate School of Letters (English Language and Literature, European Cultural History, Asian Cultural History), Graduate Graduate School of Economics (Economics, Economic Data Science), Graduate Graduate School of Business Administration (Management), Graduate Graduate School of Law (Law), Graduate Graduate School of Engineering (Mechanical Engineering, Electrical Engineering, Electronics Engineering, Civil Engineering), and Graduate Graduate School of Human Informatics (Human Informatics). The Graduate Schools offers master's and doctoral programs, with the doctoral program divided into a two-year program (first program) and a three-year program (second program), with the first program being treated as a master's program.