Reading progress update: I've read 18%.

The Irregular at Magic High School, Vol. 1: Enrollment Arc, Part I - Tsutomu Satou

So this book sexualizes the littler sister and "onii-sama"'s gaze upon his own sister. I kinda knew going in that the brother was in love with his sister, but this is all kinds of gross. Also because this is HIGH SCHOOL, we are sexualizing a girl.