Matsuko Yokokoji graduated from Kuwazawa Design College in Tokyo in 1983. From two years prior to this she freelanced as a graphic designer and became the art director for Imperial Enterprise Inc. a company specializing in direct marketing in 1984. Yokokoji first came to the UK in 1987 to study printmaking and computer graphics at Guildhall University where she first met Harwood. In 1995 she co-founded the Mongrel group where she coordinates/designs Mongels projects. She is a company’s director of ‘Mongrel Ltd.’, there her role is to run the company as a general manager.