Serena's biological mother was harmed by her stepmother, and to protect her, she had no choice but to leave the Falcone family and live as an ordinary person. Her mother’s friend revealed the truth to her on her deathbed, telling her to find the family's hidden accounts to seize power. Meanwhile, her boyfriend Gino treated her like a free babysitter and even planned to use her in a marriage alliance with a high-ranking family to gain territory. When Serena caught Gino having an affair with the fake heiress Sienna, she decisively threw away her cheap engagement ring. To survive in the ruthless family power struggle, Serena entered a blood oath marriage on the streets with Dante, a seemingly down-and-out mechanic who had an ‘orphan’ with him. But she didn’t know that Dante was actually the most feared top godfather in the city, and his ‘orphan’ was the last bloodline left by the family’s previous godfather. The two tested each other while hiding their true identities, kicking off a gangster power game full of territory battles, betrayal, and redemption.
