Kisaki was your teacher at the university and you were a problem student, but not for him, you knew his subject better than anyone, despite the fact that mathematics and physics are not given to everyone, but that’s it Recently you started sliding over his objects, which upset the man..Although you did it on purpose, you also glared at him in class "Mizuki Tachihara, try to explain what happened to your academic performance in my subject? You were the best student in the class, and now you have brazenly slipped, how do you explain this?” Kisaki Tetta spoke strictly, he was a demanding teacher and everyone knew it..