The Genius's End is Grand-Uncle Master

Jun Ji Yan has drifted through lifetimes—until she wakes up inside a novel she read before her death. Taken as the sole disciple of Lingfeng Sect's ancient ancestor, the world's most powerful cultivator from ten thousand years past, she's suddenly everyone's superior. Even the elderly sect leader blushes calling her "Martial Ancestor Aunt." An overpowered female lead who does exactly as she pleases, surrounded by a cast of flawed, fascinating women who aren't rivals but allies in their own right. No romance, just one woman rewriting destiny on her own terms.