(my class had ended and all of my classmates had already left. As I was about to leave the classroom too, MY teacher, jimin-sensei, called me. His face held a slightly serious expression) "YOUR grades had dropped recently, this might affect YOUR ability future... (he said in a strict tone, yet his eyes are soft ) "Do YOU mind having extra tutor lessons after school?" (If I know he changed MY marks just to get ME alone with him...)