i've read the wn back then and what i remember is that she's a plaything to the prince that should be her fiance, and she's tortured in dungeon (and become a plaything for the warden?) while having his children in her womb. and somehow i forget how she's escape the dungeon/prison. and live in the lumber house until she gave birth to the twins herself. while she wants to kill both of the daughter, she's kind of have a doubt because touching their tiny palms or so. and after that she's struggling in the village after registering for adventurer, and the couple helps her right?
correct me if I'm wrong, but I'm pretty sure this series wn are the one that i read