Can I use a Japanese tourist visa, then find a job, negotiate with my employer, and then change my work visa to stay in Japan?

It is illegal for Japanese to stay in Japan with a Japanese tourist visa, then find a job, negotiate with their employers, and then change to a work visa. Most people will not take this risk! Once found to be a serious act against himself, he will be sent back to China and pay a fine, otherwise he will be included in the international blacklist. It is absolutely impossible to travel abroad in the future. Except, of course, under special circumstances.