안녕하세요!
1 week is a short time in the life of a company, and you know, it's summer and time for holidays, so things might get delayed. I'd wait a week or two (or maybe the full month after submission?) before following-up
I know the wait is hard, but if you look at it from another angle, you'd want them to have enough time to give you proper consideration, right? And I bet they receive lots of e-mails.
Good luck!^^
PS.: Sorry, I only know little Korean