Business career
1.
2009/04
～
2018/03
Lecturer (part-time) Kokushikan High School Correspondence Course
2.
2013/06
～
2018/03
Visiting Researcher Kokushikan University Asia-Japan Research Center
3.
2014/03
～
2019/03
Lecturer (part-time) Kokushikan University Departemen of Political Science and Economics
4.
2015/04
～
2019/03
Lecturer (part-time) Daito Bunka University Faculty of International Relations
5.
2017/04
～
2019/03
Kokushikan University School of Asia 21
6.
2017/04
～
2019/03
Lecturer National Police Academy Language Course
7.
2017/04
～
Lecturer (part-time) The Open University of Japan Faculty of Liberal Arts
8.
2018/04
～
2020/03
Lecturer (part-time) Asia University Faculty of International Relations
9.
2018/04
～
2019/03
Lecturer (part-time) Kanagawa University Faculty of Economic
10.
2019/04
～
2026/03
Lecturer Daito Bunka University Faculty of International Relations
11.
2026/04
～
Associate Professor Daito Bunka University Faculty of International Relations