Kazuki Hayashizaki is a sword master who, after receiving a mysterious sign from a god-demon that uses summon magic, enters the magic department of the national knight academy. Though he was supposed to be the...

"Hey, you said you wanted a little sister, right?" First year highschool student, Toujo Basara, was suddenly asked this question by his father, and he fell into a state of panic. On top of that, the eccentric...