Sep 1972: Founded the Company; Representative Director, President (current) Feb 1997: Representative Director, Nihon Keiei Kyoiku Kenkyusho Co., Ltd. (Limited company, later reorganized as a stock company) Oct 2005: Chairman, Yamato Gakuen School Corporation Jun 2013: Director, Nihon Keiei Kyoiku Kenkyusho Co., Ltd. Jul 2015: Director, Yamazen Corporation (current)

Apr 1978: Joined the Company Apr 1986: General Manager, Headquarters, the Company Mar 2000: Director, General Manager of Headquarters, the Company Feb 2004: Director, Nihon Keiei Kyoiku Kenkyusho Co., Ltd. Apr 2005: Managing Director, the Company Oct 2006: Managing Director in charge of Business Division, the Company Apr 2007: Managing Director in charge of Business Division and Guidance Department, the Company Jun 2008: Managing Director, General Manager of Business Headquarters, the Company Jun 2013: Senior Managing Director, the Company (current)

Apr 1984: Joined the Company Apr 2003: Section Manager, Kansai Region, the Company Apr 2004: General Manager, Kansai Branch, the Company Apr 2005: General Manager, West Japan Business Division, the Company Oct 2006: General Manager, Business Division, the Company Apr 2011: General Manager, Management Planning Office, the Company Jun 2015: Director, General Manager of Administration Division and General Manager of Management Planning Office, the Company Apr 2016: Director, General Manager of Administration Division and General Manager of General Affairs Department, the Company Apr 2022: Director, General Manager of Administration Division, the Company (current)

Apr 1984: Joined the Company Apr 1993: General Manager, North Kanto Branch, the Company Apr 1995: Section Manager, the Company Apr 2000: Section Manager, Guidance Department, the Company Apr 2007: General Manager, East Japan Business Division, the Company Apr 2011: General Manager, Business Division, the Company Jun 2015: Director, General Manager of Business Division and General Manager of Business Division, the Company Apr 2016: Director, General Manager of Business Division, the Company (current)

Sep 1972: Director and Vice President, the Company Sep 2006: Chairman, Yamato Gakuen School Corporation Oct 2007: Adviser, the Company Jun 2008: Director, Deputy General Manager of Administration Division and General Manager of Accounting Department, the Company Apr 2009: Director, Deputy General Manager of Administration Division, the Company Jan 2011: Director, Deputy General Manager of Administration Division and General Manager of Management Planning Office, the Company Apr 2011: Director, Deputy General Manager of Administration Division, the Company Nov 2011: Director, Deputy General Manager of Administration Division and General Manager of Accounting Department, the Company Apr 2015: Director, Deputy General Manager of Administration Division, General Manager of Accounting Department and General Manager of Business Management Department, the Company Jul 2015: Representative Director, President, Yamazen Corporation (current) Apr 2016: Director, Deputy General Manager of Administration Division and General Manager of Business Management Department, the Company (current)

Apr 1989: Joined the Company Apr 1993: Chief Instructor, Yokohama Branch, the Company Apr 1995: Branch Manager, Sapporo Branch, the Company Apr 2000: Branch Manager, Kichijoji Branch, the Company Nov 2001: Deputy Section Manager, Nihon Keiei Kyoiku Kenkyusho, the Company Apr 2003: Director, Nihon Keiei Kyoiku Kenkyusho Co., Ltd. (Limited company) Jun 2013: Representative Director, President, Nihon Keiei Kyoiku Kenkyusho Co., Ltd. Jun 2016: General Manager, Nihon Keiei Kyoiku Kenkyusho, the Company Oct 2022: General Manager, Nihon Keiei Kyoiku Kenkyusho and General Manager of Cosmo Support Business Division and Garden Support Business Division, the Company Apr 2023: General Manager, Cosmo Consulting Business Division, the Company Jun 2024: Director, General Manager of Cosmo Consulting Business Division, the Company (current)

Oct 1992: Joined Aoyama Audit Corporation (Price Waterhouse) Jul 1998: Joined IBM Japan, Ltd. Jul 2002: Joined Link and Motivation Inc. Mar 2008: Director, Link and Motivation Inc. (current) Nov 2010: Founded Motivation Academia Inc.; Director (current) Jan 2011: Director, Link Dining Inc. (current) Mar 2011: Director, Link Sociale Inc. (current) Jun 2011: Director, Link Academy Inc. (current) Jan 2013: Director, Link Eye Inc. (current) Jun 2015: Director, the Company (current) Oct 2016: Director, Link Interact Inc. (current) Jan 2020: Director, Openwork, Inc. Oct 2021: Audit & Supervisory Board Member, Openwork, Inc. (current) Apr 2025: Director, Japan Strategic Finance Inc. (current) Aug 2025: Director, Unipos Inc. (current) Aug 2025: Director, E Associates Inc. (current)

Apr 1979: Joined the Company Apr 1996: General Manager, Kanto Branch, the Company Apr 2003: General Manager, General Affairs Department, the Company Mar 2006: Director, General Manager of General Affairs Department, the Company Apr 2006: Director, General Manager of Management Department, the Company Oct 2006: Director in charge of General Affairs and Accounting Departments, General Manager of General Affairs Department, the Company Apr 2007: Director in charge of General Affairs and Accounting Departments, the Company Jun 2007: Director in charge of General Affairs Department, the Company Jun 2008: Director, General Manager of Administration Division and General Manager of Business Management Department, the Company Apr 2015: Director, General Manager of Administration Division, the Company Jun 2015: Full-time Audit & Supervisory Board Member, the Company (current)

Aug 1978: Passed the National Bar Examination Apr 1979: Entered the Legal Training and Research Institute Apr 1981: Registered with the Japan Federation of Bar Associations and Tokyo Bar Association Apr 1982: Head, Yamasaki Law Office (current) Jun 2009: Audit & Supervisory Board Member, the Company (current) May 2016: Director, Nissen Co., Ltd.

Apr 1984: Joined Shinko Electric Industries Co., Ltd. Sep 1992: Joined Mio CPA Office Dec 1995: Head, Hiroshi Magabuchi Tax Accountant Office (current) Dec 2008: Audit & Supervisory Board Member, Global Power Inc. (current) May 2009: Audit & Supervisory Board Member, Kofu Warehouse Co., Ltd. (current) Mar 2014: Audit & Supervisory Board Member, CL Holdings Co., Ltd. Jun 2015: Audit & Supervisory Board Member, the Company (current)