I’m a Villainess Devoted to My Favorite Character, So What?

Reincarnated into the same world as my favorite character, I want to be loved by them so much!!!
To fulfill a wish that every fan secretly dreams of, the heroine is reincarnated into the world of an otome game.
However, she is reborn as Diana, the daughter of her favorite character.
Though things turned out a little different than expected, the heroine was happily enjoying her life as the beloved daughter, drowning in her favorite’s affection.
But when she learns that her favorite is facing imminent death, she vows, “I’ll protect my favorite with my own hands!!” and steels herself for battle.
Can the heroine protect the loving father-daughter life she shares with her favorite?!