Apr 2003: Joined Recruit Co., Ltd. (now Recruit Holdings Co., Ltd.) Apr 2011: Head of Ad Optimization Promotion Office, Recruit Co., Ltd. (now Recruit Holdings Co., Ltd.) Mar 2013: Established KAIZEN platform Inc. Jul 2013: Assumed office as Co-founder & CEO, KAIZEN platform Inc. Apr 2017: Established the Company; assumed office as Director Apr 2017: Assumed office as President, Kaizen Platform USA, Inc. (current) Jun 2017: Assumed office as Representative Director, the Company Jan 2019: Assumed office as Representative Director and Executive Officer, the Company Mar 2021: Assumed office as Representative Director, Executive Officer, CEO, the Company (current) Jan 2026: Assumed office as Representative Director, Kaizen AIX Consulting Co., Ltd. (current)

Apr 2002: Joined Recruit Co., Ltd. (now Recruit Holdings Co., Ltd.) Jan 2012: Joined Macromill, Inc. Jul 2012: Executive Officer, Head of Corporate Strategy Office, Macromill, Inc. Oct 2013: Senior Executive Officer, Head of Corporate Strategy Office and in charge of Accounting & Finance Division, Macromill, Inc. Mar 2019: Joined the Company Jun 2019: Assumed office as Executive Officer, the Company Mar 2021: Assumed office as Director, Executive Officer, CFO, the Company (current) Aug 2022: Assumed office as Director, D-Zero Co., Ltd. (current) Jan 2026: Assumed office as Director, Kaizen AIX Consulting Co., Ltd. (current)

Sep 1989: Assumed office as Director, Dial Q Network Co., Ltd. Jun 1991: Assumed office as Director, Tokuma Intelligence Network Co., Ltd. Jun 2000: Joined Index Corporation Mar 2004: Assumed office as Representative Director and President, Zappallas, Inc. Aug 2009: Assumed office as Outside Director, Nikkatsu Corporation (current) Jun 2011: Assumed office as Representative Director and President, Synphonie Inc. (now enish Inc.) Jun 2014: Assumed office as Outside Director, Jiban Net Holdings Co., Ltd. Aug 2018: Assumed office as Outside Director, Autonomous Control Systems Laboratory Ltd. (now ACSL Ltd.) Apr 2019: Assumed office as Outside Director, ROXX Co., Ltd. (current) Aug 2020: Assumed office as Outside Director, the Company (current) Aug 2024: Assumed office as Outside Director, Axelspace Holdings, Inc. (current)

Apr 2010: Joined GAIAX Co., Ltd. Oct 2014: Assumed office as Director, Head of Administration Division, Adish Co., Ltd. Mar 2020: Assumed office as Director in charge of Organizational Strategy Office, Adish Co., Ltd. Jan 2021: Assumed office as Director, Adish Co., Ltd. Apr 2021: Assumed office as COO, Minna no Code (NPO) May 2021: Assumed office as Outside Director, Slogan Co., Ltd. (current) Mar 2022: Assumed office as Outside Director, the Company (current) Jul 2025: Assumed office as Representative Director, Minna no Code (NPO) (current)

Oct 2001: Joined Asahi Audit Corporation (now Ernst & Young ShinNihon LLC) Mar 2012: Assumed office as Outside Corporate Auditor, Ortplus Inc. Oct 2015: Assumed office as Outside Corporate Auditor, L.M.G. Co., Ltd. (now Rabble Marketing Group Co., Ltd.) Jul 2018: Assumed office as Outside Corporate Auditor, the Company Jan 2019: Assumed office as Outside Corporate Auditor, Goodcom Asset Co., Ltd. Jan 2022: Assumed office as Outside Director, Goodcom Asset Co., Ltd. (current) Dec 2024: Assumed office as Outside Corporate Auditor, PRONI Inc. (current)

Oct 2001: Joined Oebashi LPC & Partners (Attorneys at Law Corporation) Jan 2010: Assumed office as Partner, Oebashi LPC & Partners Mar 2019: Assumed office as Outside Corporate Auditor, the Company (current) Nov 2019: Assumed office as Head of Eri Law Office (current) Dec 2019: Assumed office as Outside Director, Change Inc. (now Change Holdings, Inc.) Aug 2021: Assumed office as Representative Partner, ERIO (current) Jun 2022: Assumed office as Outside Director, Rohto Pharmaceutical Co., Ltd. (current)

Dec 2010: Joined Kuribayashi Sogo Law Office Feb 2013: Joined Shimizu Sunao Law Office Feb 2013: Assumed office as Director, Wilshire Corporation Co., Ltd. (current) Jul 2016: Assumed office as Outside Corporate Auditor, L.M.G. Co., Ltd. (now Rabble Marketing Group Co., Ltd.) (current) Jul 2017: Assumed office as Representative Director, Finess Consulting Co., Ltd. (current) Mar 2018: Opened Imai Sekiguchi Law Office (now Heki Law Office); Representative Attorney (current) Jan 2020: Assumed office as External Member, Compliance Committee, Roadster Capital Co., Ltd. Jun 2021: Assumed office as Outside Corporate Auditor, Rakuraku Holdings Co., Ltd. (current) Mar 2024: Assumed office as Outside Corporate Auditor, the Company (current)