In English we have two number systems, one, two, three and first, second, third.
In Korean we also have two systems, although they are used a little differently. But don't worry, it's easy to learn both. They only take 20 minutes or so each to learn, then in future games you'll figure out which is which. e.g. when telling the time, giving prices or saying your age.
Here's the first set of numbers: