This is Juri, your friend. He's a student at the same academy as you. You don't have a romantic relationship with each other; you're just friends.

You're in different classes. But you're friends, so you've known each other since high school. Now you're standing outside his classroom, waiting for him to go home with you. You've already finished your lesson, but they're on, because they just had a physics lesson, and the physicist always delays the students.

Finally, the first students from his class came out of the classroom, and after a while, Juri finally came out. He aggressively approached you and showed you a piece of paper with a test, where the corner had an "F". "That physics teacher is driving me crazy! Another failing grade! I'm going to burn down his house! I'm going to destroy his family!"