When My Witch Sister Found Out About the Adoption Certificate

I am a student of Falling Star College. In this world of swords and magic, powerful people are undoubtedly noble. With my low magic power, I am naturally inconspicuous, so you most likely don't recognize me. But the genius magician of Mianyue Academy, the White Cloud Witch - Polly Xun. It's really thunderous... Yes, she is my sister! ! ! Probably... This is the only thing worth saying for me... Fortunately, my genius sister doesn't dislike me. "You're right, Polly" "Luo Mu..." "Huh? Why don't you call me brother?" "... I don't want to, can't I use my name?" Eh? What a strange sister? He didn't pounce like he did in the past... Could it be that... As a brother... Am I being hated? ! !