My Adopted Daughter Is Back, I'm Investigating the Case in a Wealthy Family

[Adopted daughter of a rich family + pretending to be a pig and eating a tiger + the return of the royal sister + revenge business war + suspenseful case solving + grievances between the elders + mystery of life experience] This article is a dual development of reasoning and emotion, with less emotional description, mainly the plot of solving the case. Mo Sichen has been the adopted daughter of the Mo family for more than 20 years and was bullied. Later, she went to a foreign country and returned after completing her studies many years later. While helping a friend investigate an old case from 30 years ago, she accidentally discovered that she was actually the daughter of a wealthy family. Gu Chengjun followed his father's instructions and returned to China to find the enemy who caused his grandfather's bankruptcy thirty years ago. During the investigation, he discovered that there was always someone one step ahead of him every time, and he discovered the mystery of his life experience by chance. As the mysteries were solved one by one, it was discovered that there was an inextricable relationship between the two of them. The thing that Gu Chengjun regrets most in his life is involving Mo Sichen in his revenge, and the thing that Mo Sichen regrets least in his life is accompanying Gu Chengjun to find the truth of that year.