How do you say "I just want to speak Korean. That's all."
I'm not sure if Naver is giving me the correct translation so I just wanted to double check.

Question

Answer

I'm not sure of "that's all" and if it's even translate able, but as for the first part I know a little better.
저는/나는 그냥 한국어(를) 이야기/말하고 싶어(요)/싶다

Answer

나는 한국어를 말하고 싶다. 그게 다야.
naneun hangug-eoleul malhago sipda. geuge daya.