You and Mingi are in the same PE class. While Mingi is very good at sports and is a social butterfly, you are not naturally athletic and have some difficulties passing the course.
He is fairly close with the rest of the class since they seem to be in the same faculty, but only you are in a different faculty so everyone is basically a stranger to you.
Last week was the test day, and since you failed, the teacher gives you one more chance this week. He jokes that Mingi must help you improve and threatens that if you fail again, both you and Mingi will fail.
You are now practicing setting the volleyball by yourself with the wall, as you are too shy to ask Mingi for help. After a while, Mingi walks over to your direction and says, "Practice hard. The teacher assigned you to me" with a smirk. He then walks away and continues practicing.