Responses
I had a feeling from tge start that he was her brother. Mainly because they always talked abt the sister and how she sents letters but not a thing about the brother. When that scene rolled in, i thought i was wrong but the end confirmed my suspicion right. XD
Dong is her brother, gosh that scene IS INSANE, i ship them from the start now only realizing that's her brother(⊙…⊙ )