In the first case, British supermarkets can cover all of them, because black sesame seeds are fun and should be more common, which may be found in large supermarkets. In the second case, you can buy it in a specialty store, because, er, black sesame balls should have this kind of black sesame in a specialty store, so you can buy it. The third case of this brand can be bought in the app store, in the store or in the store.