Does Seoul # Korea have mobile phone cards with unlimited traffic for several days?

Do you have a mobile phone card with unlimited traffic for several days?

I don't think so. Even if there is, the package fee should be prohibitively expensive.

Then, since we are traveling and there is bus wifi in the car, who in the hotel has free wifi? Only when you go out to play can you take some photos.

Just these days, the landlord will bear it first.