Here's the thing:
It CAN be worse than sticking a needle in your eye - but - it can also be a nice, comfortable occasion with food, laughs, and a million smiles.
I think it's fair to say that in the dramas, the "meet-the-parents" ritual is a bit stylized and over-the-top than in real life. But then again, some families...
Listen to your girlfriend. If she says you have nothing to worry about then you're fine. If she's sweating bullets, then consider yourself doomed.
Without getting into specifics, I would imagine that your interest in the language is a strong point in your favor. In my experience, a lot of effort goes a long way with Korean parents. If you genuinely care about the culture, language, and traditions then you will likely be fine (save for some early bumps in the road).
Best of luck - and nice to meet you
I also studied at 이대 but I was there this past summer.