Hidden Marriage Couple: His Tenderness Has Nine Levels

After three years of marriage, Chen Yifei thought her husband was just an ordinary office worker. Until that night, she found a folder in the study with her adoptive father's name written on it—— Liu Jianguo died three years ago. In the folder are all the records of her husband's investigation into her: Her life experience, her biological mother, and the man who is looking for her - Chen Baichuan. She started looking into his past—— E-sports champion, billionaire, best-selling author... Every identity frightened her. But she doesn't know that the real secret is that she has a sister—— She got separated when she was three years old and has been looking for her for thirty-one years. She thought he was here to protect her. Little did he know that his tenderness had nine layers, and each layer was a secret. And her sister is also protecting her in her own way. [Gentle and tough female protagonist × affectionate and protective male protagonist] [Running in both directions × Suspense of life experience × Deep sisterly love]