How Does Novel Brooklyn Differ From The Manga Version?

I woke up inside a novel, and not even as an important character. I became a pretty background extra in a smut novel. My brother, however, was the only normal person in the entire story. His character setting was the one man the soft, delicate heroine could never win over. He was the cold, unattainable Prince Charming she could never conquer. When the heroine cried and confessed her love, he was studying. When she offered him her whole heart and body, he was busy starting a company. When she spiraled into scandals and nightlife, he was already a billionaire, calm and untouchable. I thought he would live a quiet, ascetic life forever. Until one night, I walked in on him at midnight… holding a piece of clothing I recognized all too well, murmuring a name over and over, a name so familiar that my scalp tingled.

After transmigrating into a novel, I realized the heroine and I had the exact same name. Naturally, I thought I had transmigrated into the female lead. So I marched straight to the man who was still a broke nobody at the time, threw all caution to the wind, and pounced on him like I had plot armor protecting me. He even glared at me with red eyes and told me he hated me. I honestly thought he was just into the whole push-and-pull thing. Everything shattered when the real heroine showed up and I finally understood one thing. He actually hated me. Heartbroken, I packed my bags and got ready to disappear. The next second, he pinned me against the wall. "Where are you going? Already bored of me, sweetheart?"

Torn between the billionaire who broke her and the mafia prince who’d kill to keep her. Three years ago, Victor Kane—cold, powerful billionaire—shattered Isabella "Bella" Moretti with one cruel sentence: “You’re too fragile for my world.” He walked away, leaving her heartbroken on the marble floors of his Manhattan penthouse. She rebuilt her life in Brooklyn’s shadows, vowing never to return to his glittering, controlling empire. But Victor doesn’t let go so easily. Now he’s back—wealthier, darker, more obsessive. Private jets, diamond collars, whispered commands in the dark: he wants her again. And this time, he’ll chain her to him forever. Then there’s Nico Moretti—her childhood best friend, the dangerously handsome heir to New York’s most feared crime family. The man who’s held her through every storm, buried her secrets, and never once demanded more. Until Victor reappears. Nico’s loyalty ignites into raw possession. His touches burn hotter. His eyes promise violence to anyone who tries to take her. He’s done waiting in the shadows. If she won’t choose him, no one else will have her. Two alphas. One rules boardrooms with ice and billions. The other rules streets with blood and loyalty. Both are dangerously obsessed. Both will destroy everything to claim her body and soul. In a deadly game of jealousy, betrayal, and scorching desire, Bella must decide: Surrender to the ex who once ruined her? Or fall into the arms of the best friend who’ll burn the world to own her? One woman. Two monsters. No safe escape.

The real heiress, Alicia Grant, gets reunited with the Grant family and is scheduled to marry Cory Dawson, who's supposed to be my fiance. On the very same day, I, the vile fake heiress, get kicked out of my home. When I'm about to take my own life out of despair, I go through an awakening all of a sudden. It turns out that I'm just a vicious supporting character in a sappy romance novel whose tragic fate is already penned by the author. After I die, Alicia decides to adopt my daughter out of "kindness", only to let her get bullied from a young age. In the end, my poor daughter dies tragically in an alley. I throw the knife away immediately. With stumbling steps, I whisk my daughter into my arms and quickly immigrate elsewhere. As a supporting character, my life is already filled with misfortune. I mustn't let my daughter go down the same path as well. Initially, I thought I wouldn't see the Grants anymore. Unexpectedly, when I step into Carmont five years later, I end up bumping into them again.

A gorgeous new lawyer named Charlotte Lowell joins our law firm and claims she has been reborn. One day, a publicly listed company offers us a massive ten-million-dollar case. Charlotte warns our boss, Levi Howard, that the company has major issues. If we accept the case, we'll lose in court and be hit with a huge payout. Levi isn't sure if she's bluffing, but in the end, he listens and passes. The next day, that very company collapses. And the rival firm that took the case is hit with a compensation claim worth tens of millions of dollars. To celebrate dodging the bullet, Levi asks me to book a restaurant. But Charlotte immediately tells him not to go to that restaurant because that place is about to have a gas explosion. Hours later, the restaurant blows up just as she mentioned. News of it hits the trending list. After those two incidents, Levi is all-in on believing Charlotte's claim of having been reborn. In order to keep Charlotte, he gives her the executive position that was initially promised to me. When I hand in my resignation, Charlotte urges Levi to stop me. "If Yelena jumps to another firm, she'll use the resources she gained here to crush us. A year from now, we won't even have a firm left." Upon hearing Charlotte's words, my boyfriend and colleague, Finley Smith, steps forward to back her up. "Charlotte's right. I saw a job offer from Vera Legal in Yelena's email. She's really petty. If she joins Vera Legal, we'll surely face her revenge." Levi believes them and rejects my resignation. I file for labor arbitration, but it's no use. In the end, I'm demoted to a janitor at the firm. Driven by resentment, I fall into depression and end up hanging myself at the entrance of the firm. When I open my eyes again, I've gone back to the day Charlotte claims she has been reborn.

A week before the college entrance exam, my twin brother, Tristan Doyle, runs away with a delinquent. Our parents abandon their massive corporate empire and set out to search for him. I intend to join the search, but a comment abruptly flashes across my vision. "Don't go, Ryan! If you skip the exam too, your family is doomed!" With no other choice, I shoulder the pressure and walk into the exam hall alone. Yet the moment the exams end, my parents return and lock me in the basement. Ten years later, I finally escape, only to discover that Tristan has stolen my identity. He's celebrated as that year's top scorer, gets a degree from a prestigious university, and is even married to my former high-achieving girlfriend, Alisha Hudson. They share a perfect life with two children. Furious, I attempt to confront them, but they bind me and throw me back into the basement. As I howl in rage, my parents reprimand me, "Tristan was never as smart as you, and that delinquent tricked him into running away. There was no way he could've gotten into college on his own." "You're his older brother. What's wrong with letting him have one thing? Stop being so selfish." I break down completely and die in despair. Only after my death do I learn that Tristan was the one who sent that comment. When I open my eyes again, I'm back on the day Tristan elopes with the delinquent. The comment appears once more. As I stand there frozen, Alisha gently nudges me with a smile. "Go study! Your whole family's counting on you."