If the main character in the novel was a mermaid, would it be the male or female lead? Can you explain it in detail?

Keeley, a simple plain Jane, hits the jackpot. [No, she did not win the lottery!] At least that's what she thinks when she marries the most eligible bachelor in New York City: Aaron, a wealthy cold-hearted heartthrob and Tycoon. She wants to show the world that she deserves her position and bends over backward to fit into his world. One beautiful day, Aaron hands her a document asking her to sign. A divorce paper... "She's pregnant, and I need to take responsibility." That is the last thing that keeps on playing in her mind before she takes her last breath. Keeley dies, a 'hit and run'. [End of story. Not!] For some unexplainable reason, she wakes up as her younger self. A young high school girl, around the time when she first meets her cheating husband. Remembering her life with Aaron before she died, she makes a promise to herself that she will do everything in her power to avoid him at all costs. Will she be able to keep her promise when Aaron has his own plans as well, specifically for her? Or will she repeat history and fall for him once more... Why not journey with me and find out the truth behind their story. *Cover art by polkadottedscrunchie*

When Xia Qingyi wakes up and finds herself in a hospital without any memories of her past, what else can she do other than to approach the person who had saved her? Enter Mo Han, a renowned barrister in the legal world famous for his coldness, arrogance, and competence. With no one to take care of Xia Qingyi, Mo Han finds himself with no other choice but to act as her elder brother for the time being. However, it does not take long for him to realize that there was something wrong with the girl. What’s up with her ability to read others at a drop of a hat? How is she so adept in fighting? Just… who in the world is this girl? With his world being turned upside down with the appearance of this mysterious girl whose new world has nothing else but him, Mo Han’s search for her lost memories begins… Keywords: Memory loss, "Siblings"-turned-lovers, Unknown identity, Law

Fang Mo'er found out that she transmigrated into a novel that gave her nothing but anger when she read it. Moreover, she became the female supporting character with a miserable ending! The female supporting character that she became gave up her family fortune and career to compete for the male lead's affection. Even so, the male lead still cheated on her with the female lead on their wedding night! According to the original plot development, Fang Mo'er would swallow her anger and still choose to marry the male lead. Eventually, the scum of the earth would cheat her of all of her resources for the female lead. Simultaneously, she would also do something crazy out of jealousy and eventually destroy her own reputation. Fang Mo'er decided that she would never walk down this path again! —In front of the Department of Civil Affairs, Fang Mo'er, who just transmigrated over, hung up on the scum's call that meant to tell her to postpone their wedding. Coincidentally, a handsome man clad in a suit walked to her side. The man said, "Miss, since your groom isn't here and my bride ran away, why don't we get married instead?" Fang Mo'er did not pay too much attention to him and wondered who he was instead. She did not recall having such a stale plotline in this novel. The man continued, "Oh, I forgot to introduce myself. I'm Shi Mo." Fang Mo'er's eyes nearly fell out of her sockets. Shi Mo? The man who only appeared once in the entire novel; the CEO of the world's biggest entertainment company? What else could be more vengeful than marrying Shi Mo to disgust the scum of a couple? "Deal!" The current Fang Mo'er was still immersed in the anger and vengefulness from the novel. Hence, this was just her trying to change the fate of a character. However, she forgot that she had become Fang Mo'er, and at this moment, she had just chosen the man who would accompany her for the rest of her life.

It was only after Su Yayan's death that she realized that she was a malicious cannon fodder female character who became a scapegoat in a Mary Sue story. After an unexpected rebirth, Su Yayan kicked her scumbag boyfriend and his mistress aside and locked her arms around the guardian-like man that she missed out on in her previous life. Everyone in the capital's upper-class circle knew that the youngest Young Master Huo was a cold-blooded tyrant who did not care about his family. Until one day, he forgot to hide his identity and logged in as himself before joining his wife's livestream. Then, he showered his wife with confessions of love during the livestream. "My wifey's cooking is the best in the world. All objections denied!" "My wifey is beautiful, valiant, and talented. She's the most beautiful budding star in the live streaming industry!" "My wifey…" (Omitted thousands of words praising his wife.) Su Yayan was speechless. "Hubby, did you grow up eating cuteness for meals?" The audience, "…" What happened to be cold and heartless? Boss, you're ruining your character setting here! P.S. The male protagonist is an "old" man who is merely four years older than the female protagonist.

My mother is the sweet, silly, and innocent protagonist of an angsty novel. My mother was the substitute for the overbearing CEO's unrequited love interest who ran off when she found out she was pregnant. As for me, I'm nothing special. I'm just the child prodigy who became a hacker at the age of five. … Genius hacker Gu Chu found herself reborn in the pages of a tear-jerker book. She had been transformed into a cute little five-year-old. Her mother was the tragic female protagonist while her father was the uncultured, boorish male protagonist. There was also a gaggle of hostile, opportunistic relatives and a pretentious, seemingly-virtuous but vile-hearted aunt... Gu Chu straightened her small little frame and began waging war secretly to help her mother. What bad intentions could a five-year-old have? She just wanted to protect Mama. … Until one day... The man who had hunted her across half the globe in her previous life suddenly appeared. As he stared at the weeping little doll-like child in her princess dress, the man fell silent for a long while.

When Ye Qing Ran wakes up, she finds that she has transmigrated into a book. She has become the vain, domineering, and evil villain who dies a tragic death. Before she transmigrated into the book, she was the carefully groomed heir of the family. Her life goal was to make the family stand at the apex of the world of fame and fortune. After she transmigrated into the book, she does not want to participate in wars in the business world anymore. Every day, she would hit on chicks, torture trash, and flirt with handsome boys. But why do her father and three brothers look at her more and more lovingly? Father: "Whoever dares to say that I favor boys over girls, I'll make his family bankrupt." Big Brother: "My sister is the smartest and most suitable to be the heir." Second Brother: "My sister is invincible and cool. She is my idol." Brother San: "My sister is an angel. Our whole family is honored because of her."