Oh, let me recommend a book to you. It's called "Black-bellied Sister Spoils Mother". The male protagonist of the novel had the surname Feng and had a sister with twins. It was similar to "The Genius Son's Black-bellied Mother." The plot of the story was that a female agent with a secret had accidentally transmigrated and became a despised lady. As for her twin sister, she had peerless looks and supreme wisdom. She became everyone's favorite pet, but in fact, she was a black-bellied big shot. The appearance of the two sisters had completely overturned the rules of this world. I hope you like my recommendation. Muah ~