Need to return to China as soon as possible. According to the report of Japan's New Overseas Chinese News Network, after studying in a Japanese university, the consequence of canceling the registration of Japanese students is that they need to return to China as soon as possible, otherwise they will be detained by the Immigration Bureau, and their visas to Japan may be refused in the future. After I drop out of school, the school will report the relevant situation to the Immigration Bureau for processing and cancel their visas. If they don't leave, they will face forced repatriation.