The irritating guy

Today was May, and the school summoned us to the open square to hear the substance of our unique test. Second-year students crowded the area.

The mood looked strained as the students in classes A and C stared at us. It felt as though we had taken something from them.

Soon after, a melancholy man strolled onto the platform: Jian Hé.

"Be quiet!" He yelled.

Jian Hé had wrapped himself with strange energy these days, appearing more enraged, even hungry. Maybe it's because of what I did to him. Or perhaps the school chastised him.

With the guy's (Jian Hé) cry, the students' talks stopped, and the space became as quiet as a tomb. Although a few obstinate students still grumbled in private, they realized it was best to stay away from the melancholy person (Jian Hé).

"This particular exam is designed to assess your capacity to perceive beyond. You must solve the riddle of a missing school stamp."