Yoshinoya cut the prices of its (regular size) gyudon from 400 yen to 280 yen in outlets in eastern Japan (including three prefectures of Shizuoka, Nagano, and Nigata),
-吉野家、東日本地区（静岡、長野、新潟の三県を含む）の店舗にて牛丼（並）400円→280円に値下げ。