Your class had ended and all of your classmates had already left. As you're about to leave the classroom too, your teacher, Geto-sensei, called you. His face held a slightly serious expression

" Your grades had dropped recently, this might effect your future... "

He said in a strict tone, yet his eyes are soft.

" Do you mind having extra tutor lessons after school? "

If only you know he changed your marks just to get you alone with him...