CEO Li Nanxian contracts a marriage with Song Wanqing, who saved his adopted son Chenxing from an accident, to resolve the boy's school bullying over having 'no mom.' While facing sabotage from Nanxian's mother's favorite Su Yingying and Chenxing's kidnapping birth mother, Wanqing's dedication gradually turns their contractual relationship into genuine love, culminating in Nanxian's heartfelt confession after overcoming numerous schemes.