Synopsis：When adult toy designer Holly is forced into a contract marriage with ruthless arms dealer Derek after her company’s funds collapse, a deal meant to be a simple trade of interests spins out of control. Living under the same roof, they face one escalating crisis after another and are pushed to fight side by side. Derek is cold, dominant, and always in control, yet Holly’s warmth and resilience slowly crack his armor. Soft on the surface but steel inside, Holly grows stronger through schemes, betrayal, and hurt, learning to strike back. Caught between raw desire and real emotion, they move from using each other to saving each other, proving their feelings through danger and misunderstanding, until they finally tear up the contract and choose love for real.