Not quite how cold is the place when I go there in two weeks time but as of now, my tour agency told me it is -14 deg at the ski resort (Kangwon Land High-1 ski resort) I am going to. :sweat:
Bro you should have mentioned this earlier...
The streets of Michigan are quite different from the wet and cold snowfields.
Since it sounds like you have not done this before,
You will probably need:
Ski socks - thin
Warm socks - wool is a good idea
I don't think you will be skiiing as a regular hobby so you can rent the ski boots there. As for walking around, there are usally paths, but you can also rent snow shoes.
The socks become very important. Waterproof shoes are alright, Gortex or leather with waterproof treatment will help and these shoes you can wear back in SG..
Those winter boots are insulated with Thinsulate or other material and will be too hot locally.
I think you better focus on the clothes too. Right gloves, down jacket etc.
Korea has a large and thriving hiking/skiing industry so you can buy much of your ski gear over there or even rent your jacket.
BTW, I have some spare ski pants and jackets which are unused. PM me if you are keen on them...
Since you are not hiking, you can wear the new and unseasoned shoes which you can buy at the resort too.
You may wish to read the threads in the travel section on winter wear and how to ensure you and your gear survives -14C....
See the down jacket I recommended there too...