This is a HOKUTO NO KEN apron that was sold exclusively at Family Mart in the past. They were sold one at a time, but I have all three. It's famous because Kisenosato, who loves HOKUTO NO KEN's Raoh, had it made and wore it as a mawashi (sumo wrestling belt). A limited number of remakes were also sold. All of them have been used, but if you don't mind, please consider purchasing them.