Comment by coderenegade
4 hours ago
It's definitely not. I know Japan and Korea had a similar process when I was living there, and I was under the impression that most places operate this way. Your visa grants you right to temporarily stay in the country, and if you don't have a visa you have no right to be there. Sometimes there's a bridging visa to cover the gap, but a country isn't under any obligation to provide one.
I've renewed my visa in Japan a bunch of times, including changing work category or visa status, and never had to leave the country for it. It's not standard for working or student visas, though you would have to leave if you were switching from a tourist visa to a different category.