Fashion King tells the story about a young aspiring designer Kang Young-gul (Yoo Ah-in) who has nothing and starts his fashion business as a vendor on Dongdaemun Market.
Fashion King menceritakan tentang seorang calon desainer muda bernama Kang Young-gul (Yoo Ah In) yang tidak memiliki apa-apa dan memulai bisnis fashion sebagai vendor di Pasar Dongdaemun.