Bro, You Are Such a Magical Girl!

Ryofu Yusei, who traveled to Tokyo, is very satisfied with his current situation. He has parents who work abroad but send him living expenses on time every month, a prestigious local high school to attend, and a perfect boy who grew up playing around... Until such a line of text appeared in front of his eyes. [From low-level fish to evil commander, the development system is loaded! ? ? ? Commander-in-Chief? I? Liangfeng Yusheng almost doubted his own eyes. However, when the system gave him the eyes of reality, he realized that this was not an illusion. What surprised him even more was that his good brother's true identity turned out to be a magical girl! [A magical girl has been discovered, please defeat her as soon as possible, capture her, evil...] No, the system is serious!