Yukou began his carrier at Hakuhodo Inc, carrying out marketing campaigns for major car manufacturers. Since 2005, he successively held the posts of the CMO and COO at istyle Inc as well as the CEO of the subsidiary or affiliated companies: Cosme.com, Cosme next and istyle Global Singapore. He led and managed the companies’ business in cosmetics internationally. In 2012, istyle Inc was listed on the 1st section of the Tokyo Stock Exchange. In 2015, he founded and became the CEO of OPEN8 Inc. The company provides female-targeted video ad platform for smartphone users and a travel & cultural video magazine “LeTRONC” .