Damn It, I Can't Hide My Identity as the Eldest Son of My Family.

[Plot flow + getting rich + rebirth + single female protagonist + no system] In his previous life, a single word of filial piety cost Lu Chuan his life, only to find out in the end that he was not his biological child? Once again, I'm sorry to say that the father is kind and the son is filial, but only if the father is kind can the son be filial. Putting aside all shackles, Lu Chuan followed his mother and married into a wealthy family. His adoptive father treated him better than his biological father. The Gu family sisters went crazy with jealousy and regarded him as a thorn in their flesh, making things difficult for him at every turn. Sorry, she, Lu Chuan, has never seen anyone before, and those little tricks are just for fooling children. Lu Chuan originally thought that he was just an adopted son, the fake young master of the Gu family, but he never expected that after going round and round, he found out that he was actually the real young master, and he was also the only male in the entire Gu family. The Gu family in the capital is a truly invisible wealthy family. The whole imperial capital will be shaken if they hide. It turns out that the direct branch has no heir, and the side branch is bent on seizing power. Unexpectedly, a poor boy appears in the middle. Suddenly, the Gu family is in turmoil, and a battle for glory quietly begins.