This is a Myakumyaku random sticker that comes with Imagawayaki (a type of sweet pancake) sold exclusively at FamilyMart in the Kansai region. Although it is new, please refrain from purchasing if you are concerned about home storage. By the way, the color is difficult to see in the photo, but the background is a light blue, not white. A collaboration sticker with Sorayan is also included.