Is There Anyone Who Practices Immortal Literature, the Type from Long Ago?

The heroine is the kind of person who was very powerful before time travel, or was very powerful in the world of immortality in her previous life, or was reincarnated. At the beginning, the heroine is either having her soul bones dug out or doing something else, and then she goes to some academy and makes friends, and then they save the world together or something like that.