China Naming Network - Naming consultation - Japanese study visa
Japanese study visa
Passports are valid for five years, so as long as they are valid, there will be no problem.
The visa was issued before going to Japan, so I won't apply for any local visa after coming to Japan. Don't worry, hehe.
As for the supplement to the question,
I just want to say that the landlord should not be too nervous. Whether the visa can come down mainly depends on economic proof, education and other aspects. I won't embarrass you by applying for a passport. If you ask, just say it was a mistake. A passport is just a book with a visa. As long as it is effective within five years, there will be no problem.