更新日 2026-10-16

Shinu Unmei ni Aru Akuyaku Reijou no Ani ni Tensei shitanode, Imouto wo Sodatete Mirai wo Kaetai to Omoimasu ~Sekai Saikyou wa Ore dakedo, Sekai Saikawa wa Imouto ni Chigainai~

原作 MIZUSATO Yuuki 作画 IWAMI Shouko

オレ――ゼクスには妹がいる。名をカロンといい、目に入れても痛くないくらい愛おしい妹だ。だが、このままだと妹は非業の死を遂げる。なぜなら、この世界は前世でオレがやり込んだRPG系恋愛ゲームと同じ。そしてカロンはどのルートでも死を免れないのだ。最愛の妹が無残に死ぬなんて許されるはずがない! だから、オレは徹底的に運命に抗う――! I, Zechs Levit y San Foranada, have a younger sister. Her name is Caroline, and she is a very lovely girl with beautiful blond hair and red eyes. It’s no exaggeration to say that she’s the cutest girl in the world, and her smile can be described as that of an angel. Despite the fact that I can’t get enough of her cuteness, my little sister is doomed to die. This world is similar to a game in my previous life called “Tōzai no Isamu Sei-ki,” in which Caroline appears in the game as a rival—A villainess—of the main character, who’s a Saint. And as a result, she dies brutally on every route. My beloved sister is going to die? I can’t allow such an unreasonable future to happen! That’s why I decided to resist fate. I will raise my little sister in a pure and righteous manner, and I will forcefully overcome the numerous death flags. Believing that there’s a bright future ahead for me and Caroline. This is the story of me, who became the strongest to protect my sister, Caroline, the cutest little sister in the world.