Is 'I Became The Lousy Side Top' Based On A Novel?

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?"

After transmigrating through three novels in a row, the hardest thing I ever suffer through is drinking iced long black. But when I open my eyes again, I somehow become the pathetic simp side character in a trashy romance novel. Just as I debate whether to file a complaint against the system, the trembling system hurriedly explains something to me. Although this is a trashy romance novel, it is also an unfinished abandoned novel. I ask, "So you're saying I decide how the story develops?" The system replied, "Yes. Everything is completely under your control." Satisfied, I lazily stretch and begin checking the original Jacob's background. He has a trillionaire father and a billionaire mother. On top of that, he has seven rich and beautiful older sisters. With such a ridiculously overpowered setup, how can he go around simping for a broke college girl with no money? What a complete waste!

I was the side character, the one destined to be neglected, forgotten, and never chosen. In the novel’s story, I was merely a background existence—the woman fated to marry the male lead, yet never once receive his love. The wife who shared his name but never his attention. Salvatore Mancini. The perfect male lead. Cold, powerful, and admired by everyone. Except me. Because in this story, his heart already belonged to someone else. When I first realized I had transmigrated into this novel, I thought I could change my fate. I tried to avoid the original scenes, tried to step away from the plot. But every time I tried to change something…I returned to the same place. The same moment, the same outcome. As if the unseen author of this story was reminding me again and again: You are only a puppet, and puppets don’t decide their roles. So I stopped resisting. If the story wanted me to be the neglected wife, then I would simply live quietly and let the plot run its course. That was my plan. Until one night, when I finally looked at the man and said casually— “Tell me something, Mr. Mancini. Aren’t you supposed to be my husband?” His cold eyes narrowed slightly, but I simply leaned back and smiled. “Then fulfill your role properly. Let’s see… what kind of man the great Salvatore Mancini is.” For the first time since our marriage he actually looked at me, not through me. At me. I didn’t know what changed after that, but from that night onward. Even when he looked at me with clear irritation. Salvatore Mancini began appearing around me more and more. Which left me with a very unsettling thought. The plot…It didn’t change, right?

My mother was the villainess of a story. When I was born, the story came to its end. In the past, she was a rich heiress who drowned herself in luxury and pleasure. At present, everyone condemned her and spat in her path. After my father, the male lead of the story, betrayed her, her family went bankrupt. She knew nothing and had no skills, but for me, she was willing to learn from scratch.

A thirty-year-old office lady, who got into an accident and is now trapped inside a novel series she loves. She was reincarnated into one of the side character extras of the story and meets in person the tyrant magician, the playboy prince, and the clueless female lead of the story.