Zhang Yang went to the classroom alone, upset and bored. At this time, the teaching building had been empty for a long time and no one was left. Everyone played at the graduation party held in the playground.

Zhang Yang was furious with Li Jiaren just now. Naturally, he didn't have the heart to play again. He just wanted to go back to the classroom and take his backpack.

in the evening, the corridor with the light turned off was a little dark. He accidentally met the stool placed at the door of the class, and immediately said to himself, "grass! It's really bad luck for people. Even if you...