Employing Japanese employees who are digital nomads?

I own a business in Tokyo (the entity for it is a GK), and I have Japanese employees under it.

They work completely remotely, and I want to give them the job benefit of being able to be a digital nomad if they want to.

If I had employees (specifically, Japanese citizens) who wanted to be digital nomads for, say, 3 to 6 months a year, since they’d be in a different country, from Japan’s point of view specifically, would I need to do anything different for their taxes or pension?

(They’ll of course figure out their own visa status in the other country, like Working Holiday or Digital Nomad visa or something like that)