Claim: Yuka Kosaka is a gravure idol and actress from the Japanese entertainment company, A-team, whose popularity rose when she became the campaign girl for the Japanese convenience store, Circle K Sunkus.
Evidence: Yuka Kosaka (小阪由佳, こさか ゆか born June 27, 1985) is a Japanese gravure idol and actress. In the fall of 2004, Yuka's popularity rose when she became the campaign girl for the Japanese convenience store, Circle K Sunkus. Currently, she belongs in a Japanese entertainment company, A-team, in which a number of Japanese actresses and models are belonged including Aki Hoshino.