It opens new doors!' What he actually says is 'Mija! Also, my name is Koo Soon-bum.' It's a flagrant mistranslation - but one that would only be apparent to those who can speak both languages. According to the subtitles, his parting words to Mija are 'Mija! Try learning English.
There is a mistranslation on the English subtitles when K played by Steven Yeun is about to jump out of the truck.
