If you don't have the intention to live in Japan permanently then you're supposed to give up PR. When you apply for a longer re-entry permit they ask about reas

If you don't have the intention to live in Japan permanently then you're supposed to give up PR. When you apply for a longer re-entry permit they ask about reasons for being abroad. I think the immigration officer would take a film view on many "visa runs" with no job, house or family in Japan.