The Great Liang dynasty's foremost female financial magnate, she was jilted by the Marquis's household and retaliated by driving the heir to bankruptcy. Xu Zhiyi concealed her identity and secretly managed the royal family's accounts, yet her fiancé used her dowry to pay off his gambling debts, while her vicious future mother-in-law called her a shameless gold-digger. Calmly citing the law, she set a trap that forced the heir to sign a 20,000-tael IOU before publicly tearing up the broken engagement letter. When creditors knelt and addressed her as 'Eldest Miss' and the Embroidered Uniform Guards galloped to escort her, her true identity was revealed: she was the Eldest Princess personally appointed by the late emperor. The powerful Regent Prince takes a poisoned arrow for her, while the young general guarding the frontier raises his troops to defend the throne for her sake. She can calculate every account in the realm, but cannot figure out which of the two men is more lovesick and reckless. Until one of them breaks into the imperial mausoleum to steal medicine and is buried beneath the ruins by a ten-thousand-catty Dragon-Breaking Stone.