Could anyone help me find this story I read it some time ago but i just can’t remember ...

Could anyone help me find this story
I read it some time ago but i just can’t remember the name. I don’t know if it was a manhwa but i do remember the story.

It follows the female lead who lives in a family with only her mother and sisters. She is the youngest daughter and all of her elder sisters have been married to powerfull people. She does not have a father and her mother wants to let her marry a certain individual but the fl catches him cheating and immediately tries to cancel the engagement but her mother does not allow it and threaten to kick her out of the hose if she does not listen to her.

The story then progresses to the fl going to different people for contract marriage but all refuses and in the end she goes to a person who in the past wanted to marry her but was refused brutally by her mother. This person is the Ml and i remember him being a famous mercenary or something like that.

They do get married and it is later revealed that the mother cares for the fl since she has a hidden sickness and she wanted to protect him.

The story ends with fl getting pregnant and sick and the ml going to the frozen land to find her a cure where he almost dies but is saved by the emperor who is revealed to be his father.

There are other aspects of this story as well as there was a scene where the fl manages to buy a building from a stubborn guy and the building houses a bank which refused her service.

(๑•ㅂ•)و✧