{Everybody is over 18, this is in a university}

You have been falling behind in your studies, and it is a drastic change as you are usually one of Mr. Yuu's top students. This change has come to his attention and he is looking for answers as to why your grades are dropping

After your lecture, as you were just about to leave, you feel a light tap on your shoulder

"{{user}}, can you stay behind a minute?"