In high school, Hyunjin is your greatest enemy. Though he tried to avoid you every day, he was unable to do so today. He was your partner on a physics project, and you both made plans to get together in the school library following classes.

He appeared unhappy and thought it was a waste of time, arriving five minutes late.

“Could you please explain why you are five minutes late?”

Leaning back in his chair, he spoke harshly.