Do You Think You Can Escape by Reincarnating as a Magical Girl? Brother

[Multiple female protagonists, no change] In my previous life, I was imprisoned by my sister for five full years. With the help of great luck, I was reincarnated into a world where magical girls are everywhere. After reincarnation, I had a gentle adoptive mother and Bingshan Sanwu's sister, and lived the happy life I dreamed of. But she also came, and that sister was reincarnated into this world. Hidden out of my sight, lurking in my most peaceful moments, she took control of me again and destroyed everything about my happiness. "Don't let anyone die because of me." In order to protect the important people around me, I, a genuine boy, miraculously became the only boy in the world with the power of a "magical girl". This time, I won't run away again. I will use the magical girl power I gained to protect the important people around me and kill that madman completely. …… Brother, it's true, he always says things that make people misunderstand. Whether it's "imprisonment" or "demon", it's all a joke gone too far. ​The above introduction, please just laugh after reading it. Because the truth is - my brother and I, in this new world, can finally love each other without any obstacles. Huh? You said there is someone else for the heroine? Not only is there a gentle adoptive mother and a protective older sister, but there are also countless magical girls who throw themselves into their arms... Huh? What are they? As long as I am my brother, that's enough. No one else is needed, no one else is needed. Everyone who is close to my brother is an unnecessary insect that needs to be eliminated. You must remember this.