"The Proposal's Secret” revolves around Aria Ashford, a resolute heiress who agrees to a one-year contract marriage with the formidable and shrewd Whitmore Damien in a last-ditch attempt to save her late father's failing business. After being thrown into a world of vicious corporate struggles and confidential family secrets, Aria finds herself involved in a partnership that blurs the lines between strategy and sincerity. What starts as a strategic agreement gradually develops into a relationship that is much more threatening and emotional than either of them could have ever dreamed.