Tontonburi is know as the chefs/kitchen area. Here you can buy everything needed for a japanese restaurant.

It is also full of actual restaurants and other oddities such as more exotic places. It has what is known as Osaka's best Ramen restaurant (the one with the long counter in the photos below) - and Yes, the Ramen was very good.

Here it is also possible to eat specialties such as the Puffa fish.

It was also one of the few places where I saw real Samurai swords for sale.