It is recommended that you go to a Japanese language school for one year, of course, if you have relatives or friends who are willing to help you as an interpreter, then you can work while you learn, after all, the language is very important;

And then which line of business do you want to invest in? What's the capital strength? This is very important, for example, Tokyo, where land is expensive, even in subway stations (such as Yamanote line) to open a 20 square meters of ramen store rent deposit of RMB 200,000, not to mention that you also have to utensils, their own lodging, living, etc.; so the funds are not very enough you must consider other cities, the north the colder and the cheaper;

Chinese food is very popular in Japan, but must be "

In the end, we recommend that you study for a year, learn the language, and find a restaurant that will let you stay in Japan for a long time with a "letter of employment" (visa issues), and then learn more about the market demand to match your strengths;

Good luck with your investment! I wish you good luck with your investment!