Nice to meet you! Sorry for the late reply. I'll use a translator to reply. I hope you understand.　　I saw the contents of the plan because you will be able to travel to Osaka, Japan. I think the time allocation is good.
Here's some advice on where to visit and what to eat. We recommend that you visit the Black Gate Market as a tour. It's a very famous market with lots of delicious food, but unfortunately in recent years it's changed to tourist prices and food.
My acquaintance visited the market when he came from Taiwan and went sightseeing by himself. "At that time, I heard that they went around eating Japanese beef takeout, and it was very expensive and unbelievable price."
For example, Japanese beef is famous, but we don't have the custom of eating it in such a market.

If you look all over Kuromon Market, there is a restaurant called Tempura Maki no Maki in about 15 minutes from there. It is probably in the shopping district where you will have to walk if you go sightseeing. You can eat freshly fried tempura! This is a chain store, but it is also very famous among Japanese. You can eat fresh ingredients at a reasonable price that is not high-end, and there is also an English menu!

"I think Shinsaibashi's ""tempura-maki-no"" has many customers from overseas, but I think it rotates fast, so please go there." I'm sure you'll be satisfied if you eat freshly fried tempura in Japanese broth!!

①https://tempura-makino.com　　　/URL

Namba 3-3-4 Namba Nichidai Building 1F, Chuo Ward, Osaka Prefecture
Closed - Opening Hours 11:00 〜 21:30

Speaking of Osaka, it's the specialty of takoyaki, and it's in a place called "Dotonbori" near here on foot from tempura. It's about 10 minutes' walk. There are many takoyaki restaurants, but "WANAKA Takoyaki" is the most delicious restaurant in Osaka. There are other famous restaurants, but if you have more time, please try them here.

②http://takoyaki-wanaka.com/#content04　/URL

6-7 Dotonbori 1-chome, Chuo Ward, Osaka Prefecture