Ye Xingzhou cheats with An Xinyi, not only lying to Lin Lanlan that she is a neighborhood younger sister staying temporarily, but also making Lin Lanlan take care of her. Lin Lanlan accidentally learns the truth, acts magnanimously to say thank you to An Xinyi for carrying on the family line for her husband, and even wants to give the company to this illegitimate child, but actually secretly collects evidence of An Xinyi's affair and the biological father's information, tricks Ye Xingzhou into investing capital into a shell company to fleece his money. After the child is born, Lin Lanlan demands a paternity test, but Ye Xingzhou not only switched the child in advance but also bribed the doctor. Lin Lanlan takes out evidence saying that he cannot reproduce at all. After Ye Xingzhou knows the plan is exposed, he bitterly begs Lin Lanlan, but in the end, Lin Lanlan divorces him.