A: Who is she? (Why is she here?)
   - 저 여자 누구야? (왜 온거야?)

B: She came to the party uninvited.
   - 초대받지 않았는데 왔네.

-> She crashed the party.(사적일 때) 파티를 망치다.
-> She spoiled the moment. 분위기를 망치다.
-> invitation ticket (초대권), reserved seat (초대석)