Which episode did Song Xiu and Xu Jie propose?

1. Ms. Law Song Xiu and Xu Jie proposed in episode 40 of the drama finale. The two were dragged to a square dance by their uncles and aunts, and Heo Jae said she wanted Song Xiu to be responsible for herself for the rest of her life, so Song Xiu pulled out a ring that had already been prepared to propose.

2. In the presence of the uncles and aunts, Song Xiu so proposed to Xu Jie, Xu Jie did not have a moment's hesitation, but instead was looking forward to Song Xiu's proposal.

3. Perhaps because of his nervousness, Song Xiu made a mistake during the proposal and was corrected by the grandfather.