Strong female leads fantasy

There's only so much one can take of her friend squealing over yet another clich romance fantasy novel. But the biggest clich of all happens when Jiwon and Yein reincarnate with Sihyeon in the exact story their friend is so obsessed with! Though G**

The story of three Koreans inside a novel! Young-hee, a high school student who became the main character in the novel she was reading, escaped the original route from the beginning because she was not confident of becoming the future empress. One da