Can Japan immigrate if it buys 300,000 houses?

First of all, you can't immigrate to Japan if you buy a house, but you can stay in Japan through work: if you are hired by a Japanese company, you can get a work visa to work in Japan, and you can also apply for Japanese immigration after working for a certain period of time.

Japanese spouse immigration: this is also the lowest immigration method. As the name implies, it is to marry (marry) a Japanese, so it will be easy to immigrate to Japan.

Studying in Japan after graduation: I don't think so. If you choose to work in Japan after graduation, you will successfully change from a study visa to a work visa. After studying and working for a certain period of time, you can apply for permanent residence in Japan and complete immigration. This is similar to a work visa, but it is only open to international students.

There is also a management visa, that is, setting up a company in Japan can satisfy the main body, because the registered capital of the company is 5 million yen (about 3 1.9 million RMB). The so-called management visa is a visa obtained by the applicant through registering a legitimate company in Japan and continuing to operate.