After graduating from ESMOD International, Ken Sonoda was active as a freelance designer. Most notably, he had participated in creating art work for well-known fashion brands such as COMME des GARÇONS SHIRT, ASICS,Yves ANDRIEUX, and Vincent JALBERT and else for 10 consecutive seasons. He has particularly been influenced by clothes that are similar to works of handmade art that were created using techniques such as stitching and hand painting.