Famous Family Tribulation

In the spring of the 24th year of the Republic of China, Yan Shuhong, the richest man in Nanxun, was poisoned on the night of his fiftieth birthday. When his father passed away, the eldest young man Yan Zhengqing, who lived away from home, took over the inheritance left to him by his father - the Haohantang Library. Soon after, the ancestral gold piece of the Yan family triggered a battle for the third wife of the third room, but this time the owner miraculously survived. In fact, the master did not really die, he was just poisoned by a poison called "Resurrection Powder", and the person who poisoned Yan Shuhong was his fourth aunt Taishan Qing. Who would have thought that the fourth aunt who has been with the master for 8 years is the wife of the Wei family who has a deep hatred for the Yan family? It turns out that during the Kangxi period of the Qing Dynasty, someone in the Nanxun Wei family secretly revised the Ming history and angered the Qing court and was exterminated. The informants were the Yan, Jian, and Ai families. The three major families received heavy rewards from the court. The library, which symbolized the honor of Webster, was assigned to the Yan family. Each family received a gold tablet related to the library. In the past 300 years, the Wei family has never forgotten the hatred of the family, and has continuously sent women to sneak into the Yan family to take revenge, bent on taking back the library and the gold tablets. The Jian family was doing business in Shanghai, but during the Yan family's birthday party, Jian Huanzhang instigated the Ai family and the Yan family to regret their marriage. Everyone knew in their hearts that their children were getting married just for face-to-face talk, but in fact they were trying to win gold medals related to the library. How could Yan Shuhong be willing?