How Does The Duplicity Book Compare To Its Anime Adaptation?

Luca Graven, an orphan cursed by poverty, worked under the man loathed the most— Dante Solis. He was a wealthy, powerful mafia leader who had the strongest men, including Luca himself cowering in fear. Unfortunately, Dante took a liking to him. He brought him into his home, enslaved him, treated him like rubbish….but, he never hurt him beyond his limits. Maybe that was why Luca never fully hated him, and maybe, just maybe, that was why he wanted him. Until, a new version of him shows up. He looked exactly like Dante, same voice even, but completely different personalities. This version listened, cared for him, no longer saw him as a mere slave, he nurtured him and treated him like he meant something for once. Of course to Luca, Dante had miraculously grown a heart but that person that showed him kindness and mercy wasn’t Dante. It was Allen Pierce—his doppelganger. Now torn between two different people, yet drawn to each of them and their different souls, he has to make a decision. But they don’t make it easy. Luca wasn’t the only one fighting to choose, they were both fighting to be chosen.

In order to become the sole heiress of the Xander family, my younger sister schemed and manipulated, pushing me into depression and driving me to attempt suicide.Upon my rebirth, I vowed to seek revenge and would not tolerate injustice.It wasn't until one day when I met a girl who looked exactly like me that I discovered the truth: my sister was a fake heiress, and she harbored many hidden secrets...

Five years ago, Janice Soto stepped into her dying twin sister’s life to keep Eden Duncan from falling apart. Pretending to be the woman he loved was supposed to be temporary, a final promise made in a hospital room filled with goodbye and grief. But somewhere between borrowed kisses, late-night silences, and the life they built together, Eden fell for the wrong sister without ever knowing the truth. When the deception finally shattered, it didn’t just destroy them, it nearly killed him. And before Eden could wake up and face what she had done, Janice disappeared carrying the one secret that belonged to both of them. Now she is back in New York, stronger, colder, and no longer willing to lose herself for anyone again. But Eden hasn’t forgotten the woman who betrayed him, and he definitely hasn’t forgiven her. Then he meets a quiet five-year-old boy with his eyes, his heartbeat, and a smile that feels painfully familiar. Because the truth isn’t just a lie from the past anymore. It’s a child standing right in front of him.

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."

My mother, Eleanor Leigh, is pregnant with fraternal twins, but we aren't developing well. The doctor recommends terminating my younger sister, Juliette Vance, whose chances of survival are slim. Since Dad, Thomas Vance, suffers from azoospermia and can never have children again, I, Julian Vance, become the pampered, only child of the family. For my first birthday celebration, Mom and Dad gift me a house and a vehicle. Every day, they dress me up like a porcelain doll and specifically enroll me in ballet classes to elevate my poise. They even carry me everywhere I go, terrified that I might fall and end up with a scar. I only learn I'm a boy in elementary school when I get laughed at for entering the girls' restroom, and later learn it in a science lesson. Because of my classmates' constant bullying, I break down in tears, begging Mom not to make me wear dresses anymore. However, she, who is usually so gentle with me, suddenly flies into a rage and slaps me hard across the face right in the middle of the street. "What's going to happen to your sister if you don't wear dresses? It's your fault for being born a jinx! You killed your sister! "If you hadn't stolen her nutrients, she would be alive and well right now! Our family business would be booming as well. You'll either be our daughter for the rest of your life, or you can go to hell right this instant!" It turns out Juliette and I are the children Mom and Dad begged the heavens for, and while Juliette's a lucky charm, I'm a jinx. I wear long hair and dresses because I'm Juliette's body double. I sprint away in tears, only to be sent flying by a car running a red light. As my consciousness slips away, I wish with all my heart to go back to when Mom first found out she was pregnant. This time, I'll be the one to be reduced.

In the neon-drenched shadows of Nairobi, Alessia wakes from a fatal gunshot with a chilling clarity: she is not who she thinks she is. While her lover, Mafia heir Lorenzo, mourns the woman she was, Alessia’s body begins to "remember" lethal skills, ancient languages, and violent deaths she never lived. She is Subject A, a high-velocity asset in Project Déjà Vu, a global conspiracy by the shadowy organization VANTA. As the "Blood Memory" fractures her reality, Alessia discovers a horrifying cycle: she and Lorenzo have been paired across centuries, engineered to fall in love only to be reset through state-sponsored tragedies. Their "Affinity" isn't fate—it’s a biological battery used to harvest emotional resonance and destabilize world power structures. Every time they grow too powerful, the system triggers a "Liquidation," wiping their minds to begin the loop anew. But this time, the glitch is permanent. Alessia evolves into the Perfect Weapon, accessing the tactical archives of her past iterations. To break the cycle, she makes the ultimate sacrifice: she severs her connection to Lorenzo, choosing cold, calculated vengeance over manufactured love. While Lorenzo unleashes his own buried rage to protect her, Alessia goes rogue, infiltrating VANTA’s core to delete the "Failure Cycle." As she nears the Creator, Silas, she faces a devastating truth: they weren't just assassins, but prototypes for a global replacement of the elite. To win her freedom, Alessia must decide if she can ever truly love the man who has been her executioner for three hundred years. The loop is breaking, the system is crashing, and the blood is finally speaking. "The memory is in the marrow. The revenge is in the soul.”