Choi Chul-yong studied fashion design at the Department of Textile Art and Fashion Design and the Graduate School of Fashion Design at Hongik University. He then went on to the Department of Fashion Design at the famed Domus Academy in Milan where he delved into exploring the boundaries between design and art. He later worked as a design consultant and an art director for various European labels, including Meltin’ Pot, Redux Blue Jeans, Wrangler Blue Bell, and Martelli. In June 2009, he launched his eponymous label CY CHOI at MC2 Diffusion Showroom in Paris.