Define Rival

Hazel's family held a hidden treasure— with the power to reshape the world. The knowledge of this secret led to their demise at the hands of Nikolai, a remorseful killer. But fate brought Hazel and Nikolai together again, as master and servant. Hazel was on a quest for vengeance while Nikolai longs for death and redemption from his dark past. But when her father's shocking involvement in their family's death was revealed, Hazel was faced with a different zeal. A zeal to save Nikolai from himself. With rival mafias closing in and a dangerous alliance forming, Hazel and Nikolai had the entire world against them.......

When ruthless Alpha Kael agrees to marry the daughter of his rival to end centuries of bloodshed, peace finally seems within reach. But fate is cruel. His true mate, Elara—a human girl oblivious to the supernatural world—pulls him into a bond that defies all logic. Torn between duty to his pack and the bond etched into his soul, Kael soon learns that Elara carries a dormant wolf gene capable of uniting the packs… or destroying them all if awakened. Love, betrayal, and destiny collide in a war where the heart may be deadlier than the sword.

Grace, the golden child as a Beta's daughter, defied all expectations by choosing Ethan—the disgraced Alpha's son—even after he inadvertently caused her father's death. She stood by him, pulling him from the depths of despair. But when Ethan finally annihilated the rival pack responsible for his own father's murder and brought back their Alpha's daughter, Caroline, his vengeance spiraled into madness. Now, Grace must face the harrowing truth: can she still love the man who has become a monster?

Book 2; Loving The Billionaire series "Let's play a game, Miss. Emma." His voice was deep, alluring, bringing her into the world she had never imagined. She leaned on the chair. "What kind of game?" -- Firstly, the CEO of the best flourishing game company, Emma Roberts had agreed to play a game with the ceo of her rival company, Jeremy Hart. It was a game of benefit, and Fairplay, but what happens when feelings surpass the game? Would this same game lead to something they both didn't expect? - "In this game. There's no falling in love." He said. "I agree." The whole atmosphere was tense.

Selena's wedding day wasn't a fairytale—it was a nightmare. A single gunshot ended her life, but it couldn't erase her story. Her path to that moment began three years earlier when she was a quiet, unnoticed intern. A chance encounter with the enigmatic billionaire Damien Roth, everything changed. He saw something in her no one else did, and his attention ignited a fragile hope for a life she'd only dreamed of. But when Selena stepped into the light, she felt a cold shadow of her sister, Cassandra, a rival who wanted everything she had.

I was just Clara - curvy, smart, invisible… until the day four men crashed my graduation and told me I’m not who I think I am. I’m the lost heiress of a billionaire werewolf pack, and suddenly, everyone wants a piece of me. Rival wolves, jealous heiresses, and greedy suitors think they can control me. They’re about to find out I bite back. My wolf is awake, my mind is sharp, and I’m done hiding. I’ll claim my fortune, my power, and maybe… finally find the mate who is destined to me.

Wickedly charming billionaire Alejandro Ruiz finally has Camila Perez right where he wants her—in a marriage born of revenge. Years ago, she rejected him, and he's spent years meticulously plotting his comeback. But sweet Camila turns his sinister intentions into an escapade of sweet torture, ensnaring him in a cycle he can't seem to break. When a rival emerges, threatening both his business and his wife, Alejandro must confront his true feelings. Will he fight for what is his, or will the weight of his past and present crush him

Betrayal! Vengeance! Reclaimed! Betrayed by her Alpha husband, Richard, Storm is shattered but when rival Alpha Kieran Blackwood [her former love turned ruthless leader] returns and seizes control, old flames reignite as he attempts to claim her. Forced to choose between loyalty to her cheating husband and desire for her first love, Storm must walk through a treacherous path of love, vengeance, and power. As Richard's obsession threatens to tear them apart, Kieran's fierce declaration under the full moon changes everything: "Storm Tevaro! You're mine, now and forever!"

Silas, the Alpha King’s illegitimate son and the son of an infamous warrior who was also the Alpha King’s childhood lover, was abandoned by his true father when his grandfather, Alpha King Nobi explained to him as an Alpha prince the high expectations for his life. As a result, Silas’ mother, Althea the warrior was banished from the kingdom when she was just a month pregnant for Silas as even her lover turned his back on her and denied her publicly. Her pack shuns her, forcing her and her family to give up their titles. On a lie his mother told, they were forced to seek refuge and the only pack willing to take them in with no questions asked happened to be her former rival’s pack. Many years later, they train Silas to be a mobile weapon of vengeance. When Silas finally meets the notorious Alpha Zemo; his real father, will he reveal to the Alpha about his shameful secret? What will happen when the Alpha king finds out that his newly trusted personal guard has a secret of his own, that he is secretly plotting his death and taking over his kingdom? Darkness looms when it was discovered by his mother’s old pack that she went to their rival pack. What will happen when the Alpha realizes that Silas is his only true son? Will he seek forgiveness, hand him over to his old pack or fight him to the death and be merciless against the product of his true love?

"My mate is the man who murdered my sister," Lucia whispered, her voice shaking. Julius’s eyes flashed with hurt and fury. "I don’t know who you think I am, Lucia, but I will prove the truth, even if it breaks us both." She swore to kill him. Fate swore to bind them. Ten years ago, Lucia Wright watched her sister, Teja, die at the hands of a man whose honey gold eyes she could never forget. Since that night, her life has been nothing but prisons, rogues, and blood-soaked promises of revenge. At the Moonbane Festival, the goddess finally grants her a mate. But when the mask falls away, she recognizes him, Alpha Julius of Rivermist Pack. The man she believes murdered her sister. Lucia accepts his mother’s sudden proposal, not out of love, but to finish what she started, to kill him from within his own home. Yet the mate bond burns hotter than her hatred, and every stolen touch threatens to unravel her carefully built rage. Julius has secrets of his own, enemies in the shadows, a rival Alpha bent on his ruin, and a past drenched in sins he can’t escape. As truths twist and betrayals surface, Lucia must decide, will she cling to vengeance, or surrender to the bond that defies her every oath? In a world of demons, rival packs, and blood debts, love may be the deadliest trap of all.