Yes, you will have to add it on steam once you 'll have the code.
The code will be delivered the 10th of february, or just a few days before for game pre-laod.
And btw, not sure how works the refund for digital products from S-Korea. Here in Europe we have commercial laws about this that grant us guaranted refund. (If you want a refund on steam, but I read somewhere that you don’t want ^^).
For pre-purchase games, you will not receive a key immediately at the
point of pre-purchase, rather you will receive the key on the day of
release (or a day or two beforehand dependant on the game publisher) We
cannot guarantee that you’ll be able to preload; however, we are in
constant talks with the publisher to ensure keys are released as early
On release, your key will be displayed in your GMG account found here, and you will also receive an email with your game key once it has been issued.
You are welcome to a refund on your Pre-purchase as long as you meet the following criteria:
The game activation key (including any bonus or beta keys) has not yet been disclosed to you by email or webpage.The release of the game, or the pre-load is not within 48 hours of
the refund request. We are unable to process refunds 48 hours before a
game is due to be released or preload begins.If purchased through Paypal, refunds can not be processed after 60
days from purchase. After this, only a credit refund can be offered in