Vera, the top codenamed assassin Viper, enters a whirlwind marriage with Caspar, CEO of Obsidian Group, to inherit her mother’s estate. What begins as a marriage of convenience for mutual benefit evolves into a bond forged as they confront family conspiracies and identity crises side by side. Eventually, this alliance built on interest transforms into a life-and-death partnership, granting them fulfillment in both love and power.