"I sacrificed myself as a holy maiden to save the world, but why did the capture targets turn into yanderes!?"

"W-why... are they all becoming yandere?!?!" I saved the world by sacrificing myself. My favorites should have been able to find happiness... or so I thought. I was reborn as a saint in an otome game world. It was a world without salvation, waiting only for destruction due to the Demon King's revival. ――And yet. "I want to seize a happy ending where my favorites can smile and live!" With that singular determination, I threw myself into a harsh journey alongside the capture targets I had always admired. I overcame life-threatening crises time and again, and finally reached the final battle with the Demon King. Despite challenging the Demon King while covered in wounds, my strength fell short――. "...Everyone, please be happy." To save the world, I sacrificed my own life and defeated the Demon King. The world should have become peaceful... But several years later. And the ones standing there―― were gazing at me with eyes darker, deeper, and more twisted than any route I had ever seen through the game screen.