Lin Zhixia, a newcomer in the workplace, accidentally becomes the personal assistant of Lu Chenzhou, the president of a multinational group, in order to repay family debts. One is a tough and stubborn "daughter in distress", and the other is a cold and paranoid business emperor. The two are forced to live together because of a secret engagement. Family conspiracies, workplace secret wars, and entanglements with old loves follow one after another. They sink step by step in the game of interests and sincerity. When the truth comes to light, is the contract terminated or is the love deeply rooted?