The venomous KOL Ding Youying will post videos online to teach makeup techniques and review new products. The domineering and capable rich girl Lei Zitong founded her own cosmetics brand, but received bad reviews from Ying. As the two entangled, Tong suffered an accident and lost her memory, and her mind was like that of a primary school student. Tong's father coerced and induced Ying to keep the secret and take care of Tong. He tried to help Tong restore her memory and help her solve various problems. Ying gradually fell in love with this "evil girl" full of childlike innocence, and was even infected by her innocence. He regained his original intention and re-examined his actions. At the same time, her childlike innocence also dissolved the cold relationship between family members and reshaped a better self. Tong's condition changed and she urgently needed surgery. However, after the surgery, Tong might lose this memory of regaining her childlike innocence. The family fell into a business crisis and needed the strong Tong to support it. Will Tong lose her childlike innocence again? How can Ying retain his childlike heart?