Reborn as a Big Shot by Pure Chance

The heroine, Ran Xiaoran, transmigrates from the modern world to a cultivation realm after an earthquake. She gains a portable space, and once her spiritual constitution awakens, her luck becomes heaven-defying and her cultivation skyrockets. She becomes the sect's cherished darling, reunites with her modern-day parents, and discovers that she is the eldest daughter of a general's household. She also marries the First Prince, who is the same campus heartthrob she had a crush on in high school. But her good fortune doesn't last. The First Prince leaves without a word, and her parents disappear without a trace. She travels far and wide to search for them, eventually reaching the Tianyan Sect, where she learns divination and discovers that her parents are in the demon realm. She journeys there from thousands of miles away, but can't find them. Instead, she meets the Demon Queen, who turns out to be her close friend from a previous life. The two hit it off, and her friend promises to help her find her parents. After Ran Xiaoran leaves, the friend wears a complicated expression. Ran Xiaoran continues her divinations and learns that her parents are in the demonic realm, so she rushes there without delay. Once again, she can't find them, and begins to doubt her divination skills. But there she encounters an ancient monster she had subdued before, as well as the male lead, whose appearance has changed. The ancient monster tells her that her mysterious space is actually a passage connecting the Three Realms. After everything she goes through, she uncovers a shocking secret: her entire life has been controlled by someone else. Who is the one controlling her, and why? Can she defeat them?