How many days is Canadian passport visa-free in Japan?

Canadian passports can stay visa-free for 30 days.

China passport can be exempted from visa for two weeks when it transits from Canada to China via Japan, and so can South Korea. But Japan (Korea) is not the destination of your trip, but a stopover.

International students are too far away from naturalization. You need to consider immigration (PR status) first, and you need to apply for immigration to Canada. The specific requirements are on cic's home page. Only with immigration status can you have a maple leaf card, and then you can apply for naturalization and get a Canadian passport after living for three years in a four-year cycle.

Immigration issues can be found on cic's home page, and the grading standards are all on it.

I have never heard of the temporary termination of Canadian immigration, but the efficiency is relatively low. In the past two years, the immigration policy has been revised a lot. The biggest impact is to tighten the examination and approval of applying for parental immigration, but at the same time relax the visa conditions. Many people can get multiple entry visas for 5- 10 years. In addition, Ontario has a policy of direct immigration for graduate students, so it is very easy for you to immigrate as a graduate student.