Origins of Blood summary: I was a fool to believe that I, a mere red, could play God. A fool to think I could change the world, to balance evil with good. A fool to trust that those dearest to me would always remain by my side. In this world, where blood reigns supreme, a single misstep is all it takes to lose oneself. Ren, my dear little brother, I hope you still watch over me, even though I am unworthy. I’ll be with you soon—just wait a little longer. If you like the story, then continue with the novel version of it for free on Webnovel! There it's under the name Origins of Blood RE