My Father-in-law Hates Me To Death, But His Fav... File

If the title you provided is a rough memory of a series, it likely refers to one of these:

: The protagonist often uses knowledge of the future (if it’s a reincarnation story) to win over the father-in-law, making her his "favorite" while the husband remains oblivious or jealous. My Father-in-law Hates Me To Death, But His Fav...

: Features a protagonist, Pereshati, who enters a contract marriage with a Grand Duke whose family has a deadly secret. Despite the family’s fearsome reputation, they eventually become fiercely protective of her. If the title you provided is a rough

If you are writing a paper on this topic, consider these points of analysis: I Forced Myself To Read A Webtoon. I Picked The Wrong One. If you are writing a paper on this

: Usually a Duke or high-ranking noble who initialy views the protagonist as a burden or an interloper.

If you are looking to write or read a "solid paper" (analysis or summary) on this specific narrative structure, it likely refers to the following themes and popular works: Core Narrative Tropes

: Focuses on a "villainess" who is initially hated by her own father, only for the story to reveal his complex, albeit misguided, devotion.