Fake saintess wish to escape reverse harem game

I reincarnated into the body of a fake saintess who will die when a real saintess appear. I woke up inside the game \'Saintess who wants escape reverse harem game\'. But while I was carefully setting up a plan to run away after playing the role of the saintess…
\"My heart only beats for you my dear saintess\'
\"Choose me, or else…\"
\"I prepared a prison just for you. My saintess-\"
The male leads reacted differently than I expected. They were supposed to treat me badly, but instead, all three of them started fighting for my heart.
On top of that, the final boss who was planning to destroy the world isn’t killing me, but helping me…?! So please just let me leave like I wanted!