Uhhh reject the king? The King... Let's say it one more time. The KING. One does not simply turn down the king especially in that culture. It didn't look like it was her choice. It was already well known who she was in love with - even her son knew but if she turned again THE KING down it could be affecting a lot more people than her. They could target her family, friends and the boy so it could have been a tough spot for her.
Tough spot? She tried? Something like escape from the country(with your love ofc)? Nope. Family? Lol what? Even her son knew about her love with another man. She didn't care about that. And know what? Forget about your family it's your life. BTW I didn't saw blackmail either(nor manga nor novel). It was like: KING!!1 - "now you are mine" then girl - "OK" and that's all folks. You(girl, ofc) didn't do anything then just forget about your beloved and be a womb (woman can only be a womb if she wants to protect other people, right?) for KING!!1 coz you alredy lost fight for your "love". What you waiting for if you didn't do anything yourself?
Why the boy should kept his promise while you alredy with another man? Oh, yeah, sorry, only man should kept his promise and proteccc his love no matter what. And why the boy should change HER fate. Good thing he leave her after fulfillment of the promise.
Uhhhhhhhhh... Let's say it one more time - she is just a womb, who wants to be protected but didn't do anything yourself.
btw what time and culture? It's ingame story.
almost good "ntr" "rape?" "blackmail?" story = "love" story for cucks.
Boy(sculptor) and girl(queen), if she loves that boy then why she didn't reject king? She became a slave or something? She didn't reject another man, but waiting beloved one... wtf? Hate this "love" story.
Engrish, sorry.