When sing this song, SONG Sohui must not smile, but rather cried. Singer-writer AN Yehun must teach SONG Sohui how to sing. SONG Sohui must have cried when singing this song. Singer-writer AN Yeun is really genius. God bless AN Yeun.They are very beautiful, and we love them. But SONG So-hui should not smile next time when sing this song.