An Ke, a junior clerk at Baichuan Group, stands in for the real heiress at a blind date with Shi Ming, the domineering CEO of Baichuan. Her original plan is to sabotage the date for the true heiress, yet Shi Ming grows intrigued by her and hopes to pursue a serious relationship.
To finish her mission, An Ke pulls out all the stops to make Shi Ming detest her. Meanwhile, Su Yuan, the scheming second female lead, repeatedly meddles to tear them apart, only to accidentally draw the male and female leads closer every single time.
Just as the pair gains approval from Shi Ming’s family, Shi Sheng, Shi Ming’s cousin, exposes An Ke’s fake heiress identity. An Ke assumes this will finally end everything between her and Shi Ming, but unexpectedly, Shi Ming proposes a contract marriage to her. For the sake of her comatose younger brother, An Ke has no choice but to agree. She constantly lives in fear that her true identity as a low-ranking Baichuan clerk will be uncovered, frantically switching between two personas: the fake wealthy lady in front of Madam Shi, and ordinary staff member Hua Fei at work.
Shi Ming mistakenly believes he has fallen for two separate women, and strives to protect both “An Ke” and “Hua Fei” wholeheartedly. Su Yuan pretends to be Shi Ming’s childhood savior, leaving him torn between the two women. Later, Shi Ming accidentally discovers An Ke’s real job at Baichuan, creating a fresh rift in their bond.
Shi Sheng teams up with Su Yuan once more and publicly reveals An Ke’s fake heiress status. Enraged, Grandmother Shi strips Shi Ming of power and appoints Shi Sheng as the new CEO. After Shi Sheng takes over, Baichuan Group faces severe crises. Fortunately, Shi Ming and An Ke step in in time to turn the tide. In the end, their love earns full acceptance from the entire Shi family.
