She was never meant to be his. One reckless night was all it took to ruin her carefully planned future. Now, she's trapped in the world of Roman Konstantinovich Sokolov—a ruthless billionaire feared by enemies and obeyed by kings of the underworld. Falling in love was never part of the plan. Neither was discovering that the man who stole her heart already belonged to someone else. Roman Konstantinovich Sokolov is powerful, untouchable, and dangerously irresistible. To the world, he has everything—a fortune, an empire... and a wife. She should have walked away the moment she learned the truth. Instead, she became the mistress in her own love story. Every stolen kiss is a sin. Every moment in his arms drags her deeper into a world where love is forbidden, betrayal is inevitable, and walking away may cost her life. Roman says she can run. But he has no intention of letting her go. The more she fights him, the tighter his grip becomes. Every escape ends with her back in his arms, every lie only fuels his obsession. She thought she was running toward freedom. She never realized she was running straight into the arms of the man who had already decided she belonged to him. He believes in possession. "She thinks she can run. But once I claim her, she'll never leave."