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In the past I made a post about the Japanese candy that tastes like this carbonated drink. I haven`t had this in a long time, but the way to open the bottle is interesting. There`s a marble inside the cap that you take out and place on top. Using the insert provided, place it above the marble with one hand, and use the other hand to smack it down so the marble punctures the seal and falls into the drink. It`s a little difficult to describe so you have to try it for yourself. I don`t have that many bottles of this at home. The photo was taken inside the grocery store.
All photos are my own.