Underworld Fanfiction Crossover

Daisy Moore, a chief female intelligence officer, despised by even the gangs of the underworld was sent on a special mission that led her directly into the arms of the mafia king himself. Nicklaus Wesley, the most affluent business tycoon, the youngest CEO dominating the industry and… the most vicious monster there is. With the presence of a king and the aura of the devil himself, the entire world dreaded the mere mention of his name. But, what will happen when a certain girl stumbles into his life hoping to expose his deeds? And what if she was just as capable as he was? Will he be drawn to the skilled beauty? Or would he rather annihilate her? When her true identity is finally revealed, will they be able to find love as sworn enemies? Or are they destined to be nothing more than secret admirers?

“Marry me Giselle.” He breathes into my neck. “I can't, you belong to another Romero.” I whisper. Giselle Gilmore, a girl whose past has been turned upside down in a life of crime and violence gets involved with Romero De La Rosa, the most feared and powerful Mafia Lord and becomes too attached to his daughter Lauryn De La Rosa. When she gets a chance to reunite with the family, a long time family alliance made with another Mafia family engaging Romero De La Rosa to another woman in marriage appears and any bridge of the arrangement will lead to the biggest war ever witnessed in the underworld. Will Romero De La Rosa bend backwards to the underworld rule or will he fight for his love.

Ever imagined a werewolf story with a little bit of danger? Just kidding—try a mafia bloodline soaked in violence, betrayal, and forbidden lust. The Evers don’t get fated mates. The Moon Goddess cursed their kind long ago. No bonds. No soul ties. Just power-hungry wolves who rule the underworld and marry for strategy—not love. Rivera fell in love with one brother but when a scandal scatters, the deal shifts. Now, she’s handed off to the older brother, Alpha, Don, Zayen Morozov. Cold. Dangerous. Merciless. She was never supposed to be his. But he’ll be damned if he lets her go. Story of Zayen Morozov and Rivera Dacian. Where the bad guys aren’t truly bad but aren’t good either.

By day, Luna Kline is an invisible philosophy student surviving on scholarships and silence. By night, she lives a secret life at Club Inferno, where desire pays the bills and anonymity is survival. When her ethics professor, Dr. Alexander Elliott, discovers her double life, Luna is pulled into a dangerous web of obsession, blackmail, and corruption. As an investigation into the club’s criminal underworld unfolds, Luna becomes trapped between a man who offers protection at a terrible cost, a club owner who will destroy her to stay in power, and a dancer who may be the only one who truly wants her free. With her future on the line and secrets closing in, Luna must decide how much of herself she is willing to sacrifice and whether freedom is worth burning everything down.

A business Mogul lost his wife to a deadly disease, leaving him alone in care of their nine months old baby. Being a busy businesses man who works both in the real and underworld, he needs help in taking care of his daughter. Hence he embarked on a quest to get a suitable nanny for his daughter by conducting an interview. The Nanny turned out to be not what he was expecting, but absolutely more than what he expected. Lust creeps in, so is the danger that came up once buried secrets resurfaced to the earth. It turns out they are both King and Princess of separate underworlds, enemies in particular. What happens when the most powerful and feared Mafia lord comes back to claim what belongs to him.

Israel is the youngest billionaire and mafia boss. He rules the underworld organization with his title 'The Little Mafia Boss'. After his parents died at a young age, he was forced to replace his father's role as a CEO and a leader as young as 18 year-old. He was a good kid, Israel. But he never thought that by the time he turned 18, feeling miserable and hopeless after his mother's death, his 18-year-old experience was beyond his expectation. At 18, he became an official orphan, he had his first experience of getting wasted by alcohol and drugs, and he even had his first one night stand with a part timer, Amelia. What will happen if five years later, they meet again?

Elena; No one who dared to mess with him lived to tell the tale. Angelo Fabian. Lord of the Underworld and the most dangerous Mafia Lord in the country. But somehow my father did. What's worse when I was offered to him as his plaything, his sexual toy, an experiment to fulfill all his sexual urges. I never knew my life could turn out to be more than the shit show it already was Angelo: In my world, traitors and snitches are a deadly sin. Unforgivable except through death. Until I met her, she was a perfect collateral for my stolen money and I plan to keep her, especially because she was proof that I can still perform and get aroused as a man.

Cassie Reed never imagined that a routine day at college would end with her being kidnapped by a ruthless mafia boss. She’s thrown into a dangerous world she doesn’t understand—one ruled by Luca, a cold and powerful man who claims she holds a secret worth killing for. Forced to live as his secret roommate, Cassie is trapped in a shadowy underworld where every move could mean life or death. Luca is controlling, mysterious, and infuriatingly distant. As threats from rival families close in, Cassie must unravel the truth behind her father’s hidden past and the secret slush fund that could destroy them all. He says keeping her close is for her protection. But Cassie wonders… is she his prisoner—or his greatest weakness?

A young woman thrust into the dark underworld of mafia revenge after a shocking betrayal from her own father. Forced into a marriage with El-Cana, a powerful mafia lord seeking vengeance for his mother's murder, Adora soon finds herself caught between hatred, love and obsession especially as she uncovers deeper truths hidden within the blood-soaked history of the Cana family. As El-Cana falls deeply in love with Adora, his brother Don Cana, becomes a growing threat, with jealous, volatile, and unhinged. Adora discovers her pregnancy, leading to an unprecedented power shift in the mafia hierarchy. But power breeds danger, and the return of the family's cruel uncle Baron unveils the ultimate enemy behind years of pain. In a world of deception, love, revenge, and loss, Adora rises from victim to queen.

My fiancé is the heir to a mafia empire. For seven years, I believed our love was the one true thing in a world built on lies. Then, on the night of our engagement party, I found him holding another woman — my own half-sister, the daughter of our family’s oldest enemy — whispering words that shattered everything: "I regret everything. Come back to me, and I’ll call off the wedding." I didn’t scream. I didn’t cry. I made a phone call instead. Three weeks later, on what should have been our wedding day, I erased my identity and vanished from his world. But not before making sure our wedding would be one he — and every family in the underworld — would never forget.