I recommend Hanskin Blemish.

It's compact and easy to carry around, making it a very useful item. It would likely suit you better if you have a lighter skin tone. I think there's nothing better than this for controlling oiliness in the summer. It acts as both an oil blotting paper and a base makeup, so I'm extremely satisfied with it. I highly recommend it! The price is also under 10,000 won, which is a plus. However, it's a bit of a shame that there is only one shade, as the color might not match well with darker skin.