Working Remotely from Japan on a Working Holiday Visa for a Foreign Company – Social Security?

Hi everyone,

I'm considering moving to Japan on a Working Holiday Visa while continuing to work remotely full-time for a foreign company. I know the WHV is primarily intended for vacation and cultural exchange, but it does allow paid work, and there’s no official limit on working hours.

Since I’d be residing in Japan and working remotely, I’m trying to understand how social security contributions should work in this situation. Should I register with the Japanese system, even though I’m working for a company abroad? Or would it be better to stay registered in my company’s social security system?

If anyone has experience or knowledge about how this is usually handled or has been in a similar position, I’d really appreciate your insights.

Thanks in advance!