Seeking the title of the novel

1. The female protagonist is very good at arithmetic and has been the accountant of the male protagonist.
2. The female lead seemed to have been given to the male lead. After she was given to the male protagonist, she had been living in one of the male protagonist's villages and had never seen him.
3. The female protagonist had a good relationship with a woman in the village. The woman's father seemed to be a steward in the male protagonist's family.
4. When the female protagonist was settling accounts, she did not allow others to enter the room. She said that she was afraid of being disturbed, but in fact, she was hiding in the room to sleep, afraid of being discovered. She also did not want others to know that her ability to settle accounts was very strong.
and so on
I can't remember the name, so I'll just describe some details. I remember some places but I don't know how to describe them.

Answer 1

What kind of novel would you like to answer? The genre and theme of the novel required more specific information to be determined.