I will stay for a week or more in Seoul, and want to get a local SIM in my iPhone. As far as I know, there don't seem to exist any carriers that enable tethering, as it is not mentioned there (but it was in other countries' page like Hong Kong).
Also, it seems that the regulation is too strict in South Korea for a traveler to get local SIM working. Is tethering allowed for a traveler or only for a local citizen, or not allowed for both?
I want to use tethering from my iPhone to MacBook; 4G/LTE is a must; unlimited data plan and no speed cap or suspension for excessive use is highly appreciated.
Please don't consider getting through Wi-Fi only even if Seoul is filled with great public Wi-Fi; it's my inquisitiveness of trying the best network in the world, too!