Shock! I Turned Out to Be the Sister of the Fake Heroine

(Note: There are cp double cleansing + space + cute beast + super golden finger + wooden and empty double spiritual roots) Once he fell to his death in the toilet, Yun Nuan became a baby after wearing a tire. Later, she discovered that the world she was in was a world of cultivation, her biological sister was the original heroine in the novel, and she was the cannon fodder sister who died long ago in her sister's memory. In the book, her sister is ruthless and only interested in profit. She is extremely talented in the cultivation of ice spirit root. Yun Yingnuan was confused as she looked at her sister who worked hard to practice swordsmanship every day, took care of her mother, and doted on her sister to death. The day her mother died, she cried and had a super golden finger. But why does the original male protagonist who stabbed his sister to death in the book follow her sister all the time? Later, Yun Yingnuan helped her sister survive the calamity of death and became apprentice to the sect boss together with her sister. It's just this poisonous little fellow, don't come over here! The little senior brother said with a doting look on his face: "Daughter-in-law, if I call you little fat girl from now on, I will be like a dog." And this heroine who wears books, don't try to assimilate me, I like the handsome brother. Demining: 1. A story about sweet pets cultivating immortals, with a huge background, no female rivalry, and the protagonists grow up together. 2. The heroine is a little weaker than the rest of the protagonist group in the early stage, because she is the youngest and the strongest in the later stage. It is not a cool story where her cultivation level increases rapidly. I don't like to enter by mistake, thank you!