A lot of products have been made based on the newest trends in Japan or inspired by Japanese culture for the food & beverage industry all around the world, including Japanese Bread Culture which has been known for long enough since 1875.
Japanese bread was invented in Tokyo with cooked and sweetened adzuki bean paste filling. The next revolution came when the US provided bread and skimmed milk in Japanese elementary school cafeterias. Since then, bread has gradually spread among the Japanese.