The Mighty Extra: One Girl Changes the World

It’s easy to overlook the extras in a novel, but when one avid reader wakes up in the body of “extra” extraordinaire Princess Lyla, she’s ready to shed the side character image and step into her mightiest form! Armed with hidden magic more potent than the empire of Belliana has ever seen, Lyla is ditching the palace in favor of a nobler mission–protecting her bias at all costs! Now she must rescue Fian, dreamy descendant of the Kylon Dragon Empire, so he can have his happy ending with the story’s heroine. That is, assuming the heroine is still Princess Helene…
This Overpowered Extra Will Change Your Life / 脇役だけどチートキャラなんで、人生変えて差し上げます！ / 먼치킨 엑스트라 / 먼치킨 엑스트라가 인생을 바꿔드립니다