Summary Ssinaeri from Kainu Manga
Ssinaeri summary: Geum knows that Jeonjin Seok loves her. She pretends not to know and marries Hyunryuog. But They struggle with having children. When Hyunryuog realizes that he is infertile and will never be able to give Geum what she wants - so ,he calls Seok who's in love with her.