Kaki’s career is unique and hybrid. He started his career as an account executive for ADK Tokyo where he spent nearly 9 years from the account side for brands such as Nike Japan, Mitsubishi Motors, Nissan Motors, Kirin Beer, etc. Then he joined Beacon/ Leo Burnett Tokyo in 2007 as a producer, expanding his role into an integrated planner, to an interactive creative director and to a creative director. He joined McCann Health Japan in 2017 as a group creative director hoping to contribute to health creativity, being promoted to an executive creative director in 2018.

Then in order to explore diverse creative possibilities that go beyond just ads, he started his own company, FOUR FEET Inc., in January 2024 as a new base of activity.

Has awarded achievements in a row since 2007 including Cannes Lions, Spikes Asia, Clio, One Show, LIA, D&AD, New York Festivals Epica, Adfest, etc. Has jury careers for Cannes Lions 2022, LIA 2023, Spikes Asia 2022, Clio Health 2021, etc. Has been a part-time lecturer for Health Creative in Health Management Course of Keio University Graduate School since 2022.