What's the relationship between Tokyo and Osaka?

Tokyo: the capital of Japan and the largest city in Japan.

osaka: the second largest city in Japan after Tokyo.

what's delicious?

Tokyo: sushi, Lamian Noodles, tempura, kebabs, soba noodles, etc.

osaka: osaka roast, octopus roast, puffer fish hot pot, Hakozushi (square sushi), fried pork skewers.

what's the use?

In addition to the popular clothes, there are also beauty cosmetics, cosmeceutical products, and ultra-attractive lifestyle items, all of which are must-buy items when going to Japan.