No Substitutes for the Bigshots' Dream Girl Anymore!

In her pursuit of saving enough money to return home, Hannah found herself playing the role of the "first-love" character in a beloved novel. Originally, this character was a typical stand-in supporting actress, taking on various substitutes for the female lead as dictated by the male protagonists, such as donating kidneys or sparing road for the female lead, which she all agreed. Eventually, the original character succumbed to the pressure, turning dark and meeting a tragic demise with a disfigured face on the streets after being killed by the male protagonists.
Hannah's task was to follow this grim plotline and achieve the tragic story's intended outcome. However, in the eyes of George River, she was merely a substitute he had enlisted—an entity dependent on him. When his true love returned, he callously abandoned the woman who deeply loved him. Later, he regretted his decision, only to discover that the once-begging woman was now surrounded by various exceptional men.
The individuals who had previously used her as a shield—the movie king, the ambitious young actor who climbed over her for his ideal goddess, and the president who regretted his actions upon regaining his memory—all found themselves humbly pleading for her affection: "Hannah, the one I love is you." Confused by the sudden turn of events, Hannah observed her bank account steadily growing and stumbled upon a newfound skill for crafting tragic stories.
As the main antagonist who successfully survived until the end of the story, Arnold Simmons was ruthless, dark, and violent. In his eyes, Hannah appeared to be the most naive woman he had ever encountered, her thoughts consumed solely by love. Witnessing her continuous deception by those around her, Arnold eventually reached a breaking point and seized her, declaring, "Stay by my side; let me handle your tasks."
[A seemingly fragile flower with an inner strength, Daughter of the Sea, crosses paths with an obsessed, dark, and sinister antagonist who contemplates disrupting the pond of bred fish every day.]