Lin Sa, the M&A queen at the peak of her career, needs to convince Jiang Lin, the most difficult representative of Party A, to win a key acquisition case. When they first met, Jiang Lin was gentle and gentle but set up obstacles at every turn. Lin Sa responded with professionalism and toughness. In the extreme pull, the two discovered that each other was their ex who ended miserably due to family pressure and misunderstanding five years ago. Faced with the difficulties and ambiguity of her "ex-boyfriend", Lin Sa focused on her career, but Jiang Lin was struggling step by step, trying to get back together. As the business war escalates, the two are forced to join forces to fight against their common enemies - Lin Sa's scumbag ex-boyfriend and opponents within Jiang Lin's family. In the center of the whirlpool of capital games and emotional competitions, Lin Sa not only won the business war with her strength and wisdom, but also made Mr. Jiang, who disguised his affection as a "scum", completely understand who is the only one who cannot be missed in his life.