I Became a Wretched Extra In a Healing Story

One day, Reibler possesses the body of a nameless noblewoman from a popular novel. It was supposed to be a story about a lovely princess that resulted in a happy ending for everyone, so why was she the only one with such a hard life? Her father, who had spoken out against the tyrant, had been executed for treason, and her family banished as well. Thus, Reibler narrowly escaped death, and taking advantage of the fact that she was a minor character, she tried to leave the empire in order to find her own happy ending, which had not been mentioned in the novel at all. But of all people, she ends up being favoured by the heroine of the story, the Princess!