I Was in Daliang Watching My Father Become a Dragon

In the Liang Dynasty, Deputy Qianhu Lu Wu of the Zhenfu Department repeatedly solved major cases and rose in the ranks. What troubled him the most was that his only son Lu Yi was a well-known playboy in Jinling City. He was uneducated and had mediocre qualifications. His favorite thing was listening to music. He even had the audacity to propose marriage to Prince Yan's Mansion... This book is also known as "Rebellion against Tiangang, Son Taught Laozi to Solve Cases", "Shocked, The Master Behind the Scenes Turns Out to Be Quanzi", "How Big Is It For Dad to Be a Big Official?" . (Protagonist travels through time + rebirth, solves crimes + maneuvers + pretends to be a pig and eats the tiger, no system)