You Have to Rely on Your Own Efforts to Survive When Traveling Through Time.

Single female protagonist + cultivating immortality + exploratory story + non-brainless and cool writing When traveling, you have to rely on yourself to survive in another world. Why is it different from other time-travelers in the story? Is there a golden finger? Does the system have it? If there is no response after shouting, then you can only explore a little by yourself. With nostalgia for his homeland, will the young man who came out of the world experience a different adventure story in another world?