When life is quantified into an Excel spreadsheet, even love can calculate the rate of return. Lin Weiwei decided to use economic formulas to restart her life after being pushed to the point of collapse by a scumbag and PUA in the workplace. She accurately calculated Gu Chen, the prince of a film and television group who had a net worth of hundreds of billions but pretended to be poor to experience life, as the "most cost-effective" contract boyfriend. She counts the profit, he counts the sincerity. In this game of profit and loss, whoever counts first and misses the heartbeat will lose the rest of his life. Let's see how the top academic girl uses rational formulas to find the optimal solution for love and career.