An Yuan, the heiress of the An family, and Fu Huai'an, CEO of Fu Corporation, had been in a nominal marriage for years without meeting. Their first encounter occurred when Xiao Hong drugged An Yuan, leading to a one-night stand with Fu Huai'an, who then mistakenly believed her to be a call girl. Later, An Yuan—a talented designer—was recommended to Fu Huai'an professionally. As they worked together, they grew closer, and he proposed making her his mistress, unaware she was actually his estranged wife. When the truth surfaced, their relationship strained, forcing Fu Huai'an to reconcile with her.