Three years ago, to repay Sara Crane's father for saving his life, Ian Griffin married into the Crane family. He secretly helped the Cranes reach a higher standing in society so that they would one day learn his true identity. Three years later, after making his last delivery for the day, he coincidentally saves Stella Wade, the Queen of Commerce, who was attacked by Estrya Assassins. After instructing his subordinate to handle the aftermath, he hastily leaves. Little does he know, Stella has fallen for him at first sight and wants to offer herself to him, along with Nimbus Group, which she has been managing for years.
Tansy West, the eldest daughter of the West family, escapes her political engagement to Edric Byrd, the eldest son of the Byrd family, by running away during the engagement party and disguising herself as a man. In her escape, Tansy accidentally becomes Edric's bodyguard. As they spend time together, they develop feelings for each other. However, Edric, originally biased against his fiancee, mistakenly believes he has fallen for his male bodyguard, causing much humorous confusion. Tansy helps Edric deal with his malicious stepmother and his scheming younger brother. She attends a gathering in her female guise, where her brother and parents recognize her. To ensure the couple's marriage proceeds smoothly, both sets of parents knock them out and send them to the wedding venue. The male lead's younger brother is captivated by Tansy's beauty and wishes to marry her himself. During another escape attempt, Tansy and Edric discover each other's true identities. Edric begins to acknowledge his feelings for Tansy, and they confess their love for each other. With her help, Edric successfully defeats his father, regains control of the Byrd Group that rightfully belongs to his mother, and lives happily ever after with Tansy.