Several Japanese restaurants I know are all masters and have many origins in Japan. They are very authentic from culture to taste and technology, and even lived in Japan for a long time.
If you just want to join, it's hard to make money if you don't do it with your heart, because the Japanese material is relatively light and not suitable for the public taste in China.
The reason for this is the following：
1. Japanese people prefer mustard to peppers that China people like.
There are some risks in the tense relationship between the two countries.
3. The most popular food now should be Korean food, which is close to us in both film and television culture and taste.
4. You can look at the current business circle, mostly Korean food. This can be understood through a search of mobile phone software.
I can only answer so much. As for those who don't understand, you can ask.