Before her business trip to Europe, Seraphina, the queen of the Dragon Clan conglomerate, handed over the "Dragon Clan Treasury Card" that symbolizes the right of inheritance to her biological daughter Elena. However, upon her return, she found her daughter expelled from the wealthy clan, severely injured and hospitalized, unable to even afford the medical bills. Meanwhile, Clara, the fake heiress, had fraudulently swiped the treasury card to live an extravagant life while posing as the legitimate heir. Auctions, power struggles within the wealthy clan, and identity twists unfold one after another. When the true Dragon Clan Queen returns, everyone who bullied her daughter will pay the most bitter price for their greed and malice.