Protect the Fake Sain

Dana was a senior in high school in Korea, getting ready for the CSAT, when she was unfortunately hit by a "truck of a romance-fantasy novel" and reincarnated into a romance-fantasy world.Since things turned out this way, she decided she would finally live a comfortable life in this new world...But then, she suddenly discovers the saintess's secret?!Well, I don't want to die, so I'll protect your secret, Saintess!